SERIAL NUMBERS..

SMLE and previous MLM MLE rifles carbines initially had the action body. 303 British Enfield Serial Numbers. Rifle No.1 Mk III or Mk III.22 No.2 Mk IV. was the only.22 SMLE made at Lithgow. Serial Numbers.

Earlier SMLE and previous MLM & MLE rifles & carbines initially had the action body batches allocated a letter, before the serial numbers were stamped (to 9999 in each series). These commenced with no letter, then progressed A thru' Z, often nominated for different contractors, RSAF Enfield, RSAF Sparkbrook, BSA Co., LSA Co., and the peddled scheme during WW1. It is interesting that different rifle and carbine Marks recommenced with the no letter and A-Z series with each new model, so it is possible to find carbines/rifles of different Mark designations with the same serial number. This is a reason that upon unit issue, serial nos. were not recorded, rather that rack numbers were assigned and stamped on the butt or butt-plate tang. On some rifles, particularly the SMLE, these unit or rack issue numbers were stamped on the top of the action body as well, e.g. in Aussie service '3.M.D.' (3rd Military District) '10381' (the Military District or unit rack no.)
On MLM, MLE and earlier SMLE rifles, the batch letter will be noted sometimes above or below the serial no. because the serial number was stamped later in production and stamped on the body and breech bolt too. Serial nos. stamped on the nosecap boss, fore-end, underside of the rearsight leaf, &c. was done at Base Ordnance Depots and by armourers to keep together components original to particular rifles during maintenenace and repair. This also applied, to a certain degree, to No.4 and No.5 rifles, particularly to the fore-end and later extended to the magazine case as well. For the SMLE, we usually find serial nos. stamped on magazine cases only on Indian issue rifles.

Recording of serial numbers for Enfield muskets, .577 Sniders and .450 & .303 Martini rifles & carbines is essential for your own records (insurance, registers, &c.) however the numbers stamped on the butt or even on action bodies are rarely the firearm's serial number. Rack or issue numbers were stamped on the right side of the butt, or marking disk (.303 arms only), on the butt-plate tang (Sniders & Enfields only) and occasionally on the action body itself, usually atop the receiver ring. While rack or issue numbers help identification, they are not the firearm's serial number.
Until 1st January 1925, the master number of a firearm was that on the barrel rather than the action body. On Sniders and Martinis, the serial number is not visible and removing a fore-end to see the number on the barrel or front inside of the body can damage wood furniture, especially if the securing pin (a la M.H. Mk I & II, M.M. & M.E. too) has rust on it. M.H. serial numbers are found on the inside right, front of the body while .303 conversion numbers used the left side. So as to match critical parts, serial number was also stamped under the rear sight leaf (and fore-ends, nosecaps, bolts, of Lee-Enfields too). You may find serial numbers easily by lifting up the backsight leaf, more convenient than removing the fore-end, IF that leaf is original to the firearm. serial nos. for .577 Sniders and .450 & .303 Martini rifles & carbines is required for your own records (insurance, registers, &c.) but numbers stamped on the butt or even action bodies are rarely a firearm's serial number. Rack or issue numbers were marked on the right side of the butt, or marking disk (.303 arms only), on the buttplate tang (Sniders & Enfields only) and occasionally on the action body itself, usually atop the receiver ring. While rack or issue numbers help identification, they are not the firearm's serial number.
Until 1st January 1925, the master number of a firearm was that on the barrel rather than the action body. On Sniders and Martinis, the serial number is not visible; removing a fore-end to see the number on the barrel or front inside of the body may damage furniture, especially if the securing pin (a la M.H. Mk I & II, M.M. & M.E. too) has rust on it. M.H. serial numbers are found on the inside right, front of the body while .303 conversion numbers used the left side. So as to match critical parts, serial number was also stamped under the rear sight leaf (and fore-ends, nosecaps, bolts, of Lee-Enfields too). You may find serial numbers easily by lifting up the backsight leaf, more convenient than removing the fore-end, IF that leaf is original to the firearm.

No.4 and No.5 rifle serial numbers can readily identify manufacturers. British No.4 rifles have five numbers, usually after one or two letter prefixes. The same letter prefix(es) were used by Maltby, Fazakerley & BSA Shirley, A to Z then AA, AB to AZ, then BA to BZ, CA to CZ &c. Maltby rifle serial numbers commence with a number '1', Fazakerley with a '2' and Shirley with a '3', e.g. 1xxxx for Maltby, 2xxxx for Fazakerley and for Shirley, 3xxxx, after the letter prefix. Late Shirley numbers then supposedly ran A4000 to A7999 and with PS prefixes at the very end of production. Post-war Fazakerley No.4 rifles had PF letter prefixes. The only exception to the 5-number sequence for No.4 rifles was the initial BSA Shirley production which ran from 0001 to 9999 then went with A to Z prefixes (A0001 to A9999 to the Z prefix) and some early dual letter prefixes (e.g. AT 0303), but then went over to A30001, &c. So early M47C No.4 rifle numbers could be confused with the Jungle carbine in having four rather than five numbers.
Long Branch (Canada) serial numbers incorporate an 'L' in the serial number while US Savage numbers include an 'C' in a similar relative position amongst the numbers. Both of these No.4 rifle series commenced with 0L1 and 0C1 respectively.
No.5 Jungle Carbines only have 4 numbers, the Shirley carbines have BB to C? prefixes, last production was post World War 2. The Fazakerley jungle carbines ran from FE1 to FE1000 initial production, then with no letter prefix, followed by A1 to A9999 through Z9999.

British No4 rifles were set up with a 5 digit serial number system with 1XXXX being allotted to Maltby, 2XXXX Fazakerley, 3XXXX BSA Shirley. Yet again, once the sequence of numbers caped out letter prefixes were used to start the sequence over. The only serial number type number I can find is on the metal part of the receiver where the back part of the stock connects to the front part, right behind the trigger. On here it has a SIX digit number 370XXX in large digits. I haven't been able to find ANY mention of a six digit serial number (with no letters in it).

Serial numbers of certain Lee-Enfields can serve as indicators of the model and help with initial authentication. The 'BS' prefix was used for the .22 British No.7 rifles, 'T1' for the .22 No.5 trials small-bore target rifles in 1945 and 'DA' for the .22 No.8 N.Z. contract rifles by BSA Shirley. 'SKN' was applied to factory sectionized models, an 'XP' prefix was used for Lithgow Shortened & Lightened SMLE and No. 6 jungle carbines, 'X' was used for a small number of Lithgow No.1 rifles with stainless steel barrels and 'FE' was used for early production Fazakerley No. 5 jungle carbines. Trials No. 1 Mk VI and No. 4 Mk 1 rifles made in the early 1930s have an 'A' prefix to their original serial numbers although many were later upgraded to No. 4 specs and the 'A' became a suffix to indicate the fitting of some non-interchangeable components. On No. 4 rifles, an 'A' suffix was stamped by a repair depot or armourer after the serial number when some parts were found to be non-interchangeable.
 And of course, with the Canadian No.4 rifles, the letter 'L' precedes the last four numbers as does a 'C' for the Chicopee Falls production Stevens Savage Lend-Lease No.4 rifles and 'J5550' (the drawing number) prefixes the Canadian Lightened No. 4 serial number. After the initial 99,999 rifles, the Lithgow No. 1 (S.M.L.E.) proceeded through 'A', 'B', 'C', 'D', 'E' and 'F' prefixes before the last rifle F40580 was manufactured in 1953. WW2 production ceased with F39580 and the 1,000 rifle run during the Korean War ran from F39581 to F40580. More details on serial numbers will also be found in the new book, 'The Broad Arrow'.
The 7.62mm L1A1 series serial number prefixes similarly denote makers. UE is Enfield, UB is BSA, UF is Fazakerley and AD is Lithgow, Australia. 'SAF' was applied by the Lithgow factory to certain export sales and 'SR' for Lithgow sectionized rifles. South African 7.62mm FAL's were Belgian production metric models, engraved with the South African crest. Indian 7.62mm 1A rifles ran conventional serial number series with a letter prefix.

7.62mm L2A1 prototypes (heavy barrel auto model) from SAF Lithgow had 'X' prefix serial numbers. Some were onforwarded to Malaya and New Zealand, good customers who purchased quantities of the 7.62mm L1A1 model--
X1 to Malaya (7 June 1961)
X2 to X4 to Malaya
X5 to New Zealand
X6 to X7 to Malaya
X8 to Malaya, returned to SAF and rebuilt, forwarded to Australian War Memorial
X9 to Malaya
X10 AIS (Army Inspectorate) Lithgow
X11 AIS Lithgow
X12 AIS Lithgow
X13 to Malaya
X14 to Malaya
X15 to Malaya (likely only 15 rifles w/ X serials built, following were converted receivers)
X18 rebuilt from X8 at AIS Lithgow
X19 rebuilt from X9 at AIS Lithgow
X20 TT 176 for Army trial, control weapon (normal barrel & gas block, concession trigger mechanism & body bullet lead)
X21 TT 176 (test/trials) used with X20 by the Army
X22 possibly a number allocation and not assembled
Australian L2A1 production commenced in 1962 with 3,000 rifles and continued until 1982 with a total production of 9,557 (excluding the X-prefix pre-production batch referred to above).

Lithgow SAF in-house L1A1 test and some special rifles have some different serial number prefixes. SAF was used for target rifles and commercial batches which included the L1A1A rifles for the United States, e.g. SAF830103. TT and TR were applied to in-house test models. TR0001 to TR024 are recorded as having been assembled,
TR0007 Fully chromed barrel & auto to ADE Melbourne
TR0008 Fully chromed barrel & auto to ADE Melbourne
TR0015 Adverse condition trial with selected components; TT56, TT57, TT58, TT59
TR0016 Production rifle for comparison with above
TR0017 Adverse condition trial TT60 / C110
TR0018 Deterioration of Rifle body using proof rounds; TT61
TR0019 For case proof Footscray, special hardened body BRH
TR0020 BRH body
TR0021 H2 body for cartridge case ammo trial
TR0022 H2 body for cartridge case ammo trial
TR0023 H2 body, test on body hardened at finished stage; TT72 & 74
TR0024 HT body, test on body hardened at finished stage. Also ejector trial.
TT64A, TT64B, TT64C, TT64D, TT64E to observe stretching of body
SR1 Sectionized rifle, to Senior Inspector, AIS
SR2 Sectionized rifle, to Senior Inspector, AIS SAF
SR3 Sectionized rifle, to Bandiana
SR4 Sectionized rifle, to Bandiana, for Melbourne Museum
SR5 Sectionized rifle, Factory inspection prototype
SR6 Sectionized rifle, Australian Trade Commissioner, New Zealand
SR7to SR18 Sectionized rifles, to Malaya
SR19 to SR27 Sectionized rifles, to New Zealand
SR28 Sectionized rifle, to Zambia
SR29 to SR36 Sectionized rifles, for factory personnel
SR37 to SR588 Sectionized rifles, service issue, some sold to collectors and museums
SR8800001 to SR8800010 were a special bi-centennial batch of L1A1 A sectionized rifles in 1988, also engraved 'AUSTRALIA'S BI-CENTENNIAL 1788-1988' over 'S.A.F. LITHGOW L1.A1. PRODUCTION 1958-1988' on the right side of the upper receiver. A special copper - bronze medallion was also inletted into the right side of the butt of these 10 rifles.

Serial numbers for British made L1A1 rifles and Small Arms ran in blocks with factory code and year prefix followed by the serial number commencing with an alphabet letter e.g. UB60 A85830 (last rifle by BSA for the 2nd quarter 1960). Third quarter numbers commenced with A85831. The initial BSA batch of L1A1 rifles for the quarter ending December 31 in 1957 was UB57 A1 - A870. For the quarter ending April 30th 1960, numbers were UB60 A63625 - A75299. The last serial number for the quarter ending 31st July 1960 was UB60 A85830. An anomaly.. factory logged quarters ended with 30th April and 31st July???
'U' indicates UK. The next letter is the factory, 'E' for Enfield, 'F' for Fazakerley, 'B' for BSA Guns, 'S' for Sterling Engineering.
This was followed by the year indicator, e.g. '55' for 1955, then the serial number commencing with A1 which continued to A999,999 after which it advanced to a B prefix, starting with B1. The year indicator was irrespective of the serial number advance, e.g. the last rifle at Enfield in 1956 may have been UE 56 A2136, the first rifle in 1957 would thus be UE 57 A2137, until A999999 was reached after which the 'B' series was to be used commencing with B1, e.g. UF 68 B1.
Repaired weapons are marked with factory code, year and 'F.T.R.' adjacent to the original serial number. Where two or more types of weapons are manufactured or repaired at the same factor, a separate series of numbers will be maintained for each type of weapon, each commencing at A1.
For replacement numbers, i.e. unnumbered or illegible originals, SA prefixes were allocated for Army, SN for the Navy and SR for RAF. An example is an L1A1 returned by police in 1978 with an obliterated number was then engraved SA78 A1.
RSAF Enfield reported production of 103,400 L1A1 rifles, 108,300 L1A3 bayonets and 15,520 L1A2 grenade launchers by the end of the financial year 1961 for the War Office, Admiralty, Air Ministry, Ghana, Rhodesia, Nigeria and Singapore. Enfield FTR'd 10,000 No.4 Mk 2 rifles for Burma in that period, new No.4 rifles were made at ROF Fazakerley.

heavysac.netlify.com › Lee Enfield Jungle Carbine Serial Numbers ▀ ▀ ▀
By Marc Cammack
USA – -(Ammoland.com)- Many famous firearms were used in World War Two. The United States produced M1 Carbine and M1 Garand.
The Germans had the K98 Mauser bolt action Rifle, the Russians used Mosin Nagant rifles, and the Japanese had the Arisaka bolt action.
The British Army’s most famous rifle of the conflict was the Lee Enfield No 4 Rifle Mk 1 in .303 British. The No. 4 Enfield was the evolution of an older design and was used in many famous battles such as D-Day and Arnhem.

Lee Enfield No 4 Rifle

The venerable British Enfield MKIII in .303 British performed well during World War One. This rifle’s bolt design enabled soldiers of the British Empire to put out high volumes of accurate fire. The Enfield’s 10 shot magazine was also double the magazine capacity of the German Gewehr 98 Mauser 8mm rifle.
However the MKIII Enfield had its faults, namely its sights. The MKIII had open sights, which were inferior to peep sights for use in combat.
From 1922 to 1924 a new rifle was produced, that had peep sights called the No. 1 Mk V. 20,000 of these rifles were built for troop trials by RSAF Enfield. The Mk V’s rear sights did not stand up to heavy use and it was decided not to adopt the gun as the new infantry rifle. The No. 1 Mk VI rifle was prepared for testing in 1931, and was made in limited numbers by the Royal Small Arms Enfield Factory. Also in 1931, the Mk VI became known as the No. 4 rifle.
The No. 4 featured a peep sight that was more rugged than the Mk. V sights. It also had a heavy barrel and a spike bayonet. Further trials of the No. 4 were carried out to work out issues with the rifles, and the rifle was adopted for use by the British Army in 1939. Despite the adoption in 1939, mass production of the No. 4 rifle didn’t begin until 1941. During World War Two the No.4 saw widespread use by British forces.
The weapon was used in all theaters of war in which the British fought. The weapon performed well, and was reliable just like the MKIII Enfield which it replaced.
The Lee Enfield No 4 Rifle Mk 1 was produced by a variety of different manufacturers in England. These included ROF Fazakerley, BSA, and ROF Maltby. Wartime guns all had letter prefixes, but each maker had a different number after the prefix to differentiate manufacturers. Maltby guns had a “1” after the letter prefix, Fazakerley guns had a “2”, and BSA generally a “3”. Some BSA guns lacked an alphabetic prefix, and other BSA guns had dual letter prefixes that did not start with a “3”.
After the war ROF Fazakerley continued production of the No. 4 Mk 1, producing rifles as late as 1948. These rifles were marked with the month and year of production and ROF on the left side of the receiver. These guns’ serial numbers began with PF prefixes.
Lee Enfield No 4 MK 1 Rifles were produced in both Canada and the United States during World War Two. The majority of these North American produced rifles were No. 4 Mk 1* rifles meaning that the bolt head was released through a slot that was cut in the rear of the receiver instead of a catch below the rear sight. The No. 4 Mk 1* was only produced in North America, and this change helped in simplifying production of the No. 4 Enfield rifle.
Canadian production of the Lee Enfield No 4 Rifle began in 1941 at the Long Branch Arsenal in Toronto. Wartime production of the No. 4 ceased in 1945, but the rifle was later put back into production from 1949 until 1950. Long Branch made over 900,000 No. 4 Enfield rifles in total. Savage produced the No. 4 Mk1* rifle in Massachusetts beginning in 1941. Savage made No. 4 Enfields were marked “US Property” on the left side of the receiver, and they were also marked with an square S for Savage. Savage’s rifle contract was cancelled in June 1944, with an estimated 1,236,706 rifles being produced.
A sniper variation of the Lee Enfield No 4 Rifle was used in World War Two, that used the No. 32 3.5x power scope and had a wooden cheekpiece. This model was adopted in 1942 and it was known as the No. 4 Mk 1 T. The earliest sniper rifles were converted from the Trials No. 4 Enfields at the Royal Small Arms Enfield Factory. Later that year Holland and Holland was contracted to convert select No. 4 infantry rifles to No. 4 Mk 1 T sniper rifles. British and Savage made rifles were selected for conversion. Somewhere between 23,177 and 26,442 rifles were converted by Holland and Holland. Long Branch made a small number of sniper rifles late in World War Two, in addition to those that were converted by Holland and Holland.
An improved version of the Lee Enfield No 4 Rifle was introduced in 1949, called the No. 4 Mk 2. The No. 4 Mk 2’s trigger was mounted onto the receiver unlike earlier guns in which the trigger was mounted on the trigger guard. This provided for a better trigger pull. No. 4 Mk 2 rifles were produced by ROF Fazakerley for a wide variety of countries and organizations such as South Africa, Ireland, and the Royal Air Force. Many of these guns are found today in excellent or like new condition due to many of them having never seen action. Many No. 4 Mk 1 and No. 4 Mk 1* rifles were upgraded to Mk 2 specifications. These rifles are marked either No. 4 Mk 1/2 or No. 4 Mk 1/3. They will also be marked FTR meaning Factory Through Repair.
The Pakistani Ordnance Factory (POF) made both No. 4 Mk. 1 and Mk. 2 Enfield rifles in limited quantities during the 1950’s and early 1960’s. In addition to building new rifles POF rebuilt older No. 4 rifles. Many No. 4 Enfield rifles of all types were overhauled and rebuilt in India at the Ishapore factory. These rifles were often marked “RFI” for Royal Factory Ishapore. Many of these Indian overhauled rifles also had a reinforcing screw on the left side of the stock.
A shortened and lightened version of the No. 4 Enfield was adopted in 1944 as the No. 5 Mk 1 Carbine. The No. 5 is better known as the “Jungle Carbine” and was made by ROF Fazakerley and by BSA. The No.5 used a unique blade bayonet and today these bayonets bring a high premium over No. 4 bayonets. A total of 251,000 No. 5 Carbines were produced from 1944 until 1947. The No. 5 was used late in World War Two and saw widespread use during the Malayan Emergency.
No. 5 Carbines featured a flash suppressor, rubber buttpad, and rear sight graduated out to 800 yards. The Carbines also had several lightening cuts made to reduce weight, including in the bolt, barrel, and receiver.
British
The No. 5 was said to have been unable to be sighted in and this became known as “Wandering Zero”. Because of this the No. 5 was declared obsolete in 1947, but the gun still continued to service in Malaya.
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Enfield
In the United States surplus Enfields were modified by importers to resemble No. 5 Carbines, but real No. 5s are easy to tell. Real No. 5s will be marked No. 5, their rear sights will be marked out to 800 yards, and they will have a hollowed out bolt handle and lightening cuts made on the rear part of the barrel. Finally real No. 5s were only made by ROF Fazakerley, (Code ROF marked on left side of receiver) and BSA. (Code M47C on left side of wrist) Pclp.
Today surviving Lee Enfield No 4 Rifle of all types including No. 4s and No. 5s are gaining value on the collectible market. Many Enfield rifles were sporterized or modified following their release on the commercial market. Today Enfields are found only on the secondary market. There are many collectors that focus just on Enfield rifles and their many variations. Sniper rifles and trial rifles like the MKV and MKVI bring a substantial premium over comparable infantry rifles.

Enfields are also popular in places like England, Canada, and Australia where semi automatic rifles are either banned or heavily regulated.

** Images: Rock Island Auction Company ( www.rockislandauction.com )

Resources:

Check Out this Video of Run & Gun Shooting of the Lee Enfield No 4 Rifle:

About Marc Cammack
Marc Cammack has been collecting firearms since he was 14 years old.
His interests are primarily military surplus firearms of the late 19th into the 1950’s. He has studied these in depth, and currently volunteers at two local museums providing them with accurate information about their firearms.
He is a graduate of the University of Maine with a bachelor’s degree in history. He has studied modern European and American history since the age of 9, and has been shooting since the age of 11. He currently resides just outside of Bangor, Maine.

Enfields at a Glance

Here is a simple shadow board depicting the 4 most common Enfields.
Serial Numbers, Model, Mark and Manufacture Identification

Over the years I have received many emails regarding serial numbers. The volume of serial number inquiries has prompted me to fashion this page together and try and explain how best to identify a particular rifles manufacturer. Truth be known about Enfield serial numbers is simply, the serial number was used more for production counting than any other reason. For official references, usually the finished and issued rifle was tracked by its rack number and of course these records have long since been destroyed or lost forever. This is not to say that Enfield serial numbers provide no information or that they are not an interesting subject. For those out there that want to get deeper into the serial number issues I would suggest purchasing either Skip Stratton’s or Ian Skennerton’s books. What this page will attempt to provide is a basic overview of the serial system and where to find them along with the manufacture markings and barrel date stamp that is common on most Enfields.
SMLE rifle manufacturers were given no serial ranges to begin or end production with, so it is possible that two rifles may exist with the same serial number produced at different factories. Some SMLE’s may be found with as little as a 3 digit number and high as a 5 digit number. Once the initial range of numbers was maxed out a letter prefix was added and the numbering began again.
Serial Number and Manufacturer Information Locations

Enfield Serial Number Look Up


Seen in the picture above are the places where the serial number and manufacturer can be found. Along with the manufacturers name both the date of manufacture and the type and mark of the rifle is also shown. SMLE’s will have serial numbers stamped on the bolt, receiver, barrel, nose cap and the underside of the rear sight. They may or may not have the serial stamped into the front part of the fore-end and in the case of the Australian Lithgow’s it may be stamped into the butt as well. When reference is made to an “all matching” SMLE the serial numbers must all be the same.
No4 rifles were given a starting number that may be used to identify manufacturers, but again there was no set serial blocks. British No4 rifles were set up with a 5 digit serial number system with 1XXXX being allotted to Maltby, 2XXXX Fazakerley, 3XXXX BSA Shirley. Yet again, once the sequence of numbers caped out letter prefixes were used to start the sequence over. In the case of Savage Stevens the serial numbers began with a 0C1 and for Long Branch 0L1, these serials progressed in sequence directly relating the serial number to the number of rifles produced. An example would be: rifle serial number 52C2689 would be the 522,689th rifle produced by Savage Stevens.
No5 rifles (Jungle Carbines) serial numbers consisted of a sequential 4 digit number starting with 0001 running through to 9999, the numbers were preceded by a letter prefix. When the number sequence reached 9999 the next letter assigned to the factory would be substituted in place of the former. These specific letter prefixes were assigned to ROF Fazakerley and BSA Shirley, the only two manufacturers of the No5 rifle, this ensured that there would be no duplicate serials during the production run of No5’s. The prefixes were assigned as follows:
ROF Fazakerley
A, B, C, D, E, F, G, L, N, O, P, Q, R, S, T ,U, V, W, Y ,Y, Z, AA, AB, AC
BSA Shirley
BB, BD, BE, BF, BG, BH, BJ, BK
Serial Number and Manufacturer Information Locations

Seen in the picture above are the normal spots to find the serial number and manufacturers’ information on the No4 and the No5 rifle. Places that will have the serial information is on the bolt, receiver and normally the barrel. They may have the numbers stamped into the front portion of the fore-end and on the bottom of the magazine. Manufacturers will be noted either on the left side of the receiver or on the left side buttsocket. The mark and type of rifle will be stamped onto the left side receiver wall. Like the SMLE an all matching No4 or No5 will have all the serial numbers matching wherever they are found on a particular rifle.
Certain serial number prefixes were reserved for trial rifles and specific rifle types. These prefixes can be used to authenticate these rifles if found in a gun shop or personal collection. The most common of these were: XP was used for the Shortened and Lightened Australian Lithgow (No6 Jungle Carbine) rifles, A was used for No1 MkVI trail rifles, BS was used on the British No7 small bore rifles, and T1 for the No5 small bore rifles. There are more but again I would suggest reading either Skip Stratton’s or Ian Skennerton’s books on the subject.

British 303 Enfield Rifle Markings