Dear Pan JB,
This is the first time I have heard of the Republic of Poland using British Weaponry, being pretty well informed on the Use by Poland of Austro Hungarian M95 rifles (8x50R); Imperial Russian Mosin M91 Rifles (7,62x54R; French Lebel and Berthier Rifles ( 8x51R Lebel) and German Mauser Rifles (7,9x57).
Most of Britain’s post WW I deliveries were to the Baltic States, Finland, and consisted of Rifles, MGs and ammo for the Baltics, and Aircraft5 MG and ammo for Finland.
as to the ammunition you have described:
Pocisk zwykly Mark VII Ball, both waerime manufacture and Contract supplied in 1920 ( depends on headstamp)
Pocisk prz.APX 4 Ball armour Piercing: French made cases ( Puteaux Arsenal, Paris) loaded with British Made "Mark
VII W projectiles, supplied by Greenwood and Bately, for use by French Airforce in Lewis Guns.
Pocisk swietlny S.P.G Ball Tracer, by Sparklets Ltd., a British supplier of Tracer ( SP=Sparklets, G= Tracer) Also called when officially adopted by Britain, “Tracer Mark VII G”
Pocisk prz-sw_ T P Unknown maker: there were no makers of combined AP-T in either US or Britiain during WW I.
TP could stand for “Traceuse-Penetrant” ( French for “Tracer-(Armour)” Piecing)…Possibly a post 1918 development.???
Pocisk zap. Buckingham: Buckingham Incendiary, Mark VII B .
It would be interesting to see a Print of this Instruction. Have you asked on the Main Polish Website for Military Rifles and MGs…that is very informative.
I don’t Speak Polish, but I can recognise it in Print, especially the Military Ordnance Terms ( as with the Other Slavonian Language Countries of Eastern and Southern Europe.)
I wonder what happened to all the P14 Enfield Rifles when Poland settled on 7,9mm as its standard calibvre ( at least on the Ground…they kept 7,7 for some Aircraft, both from Czechoslovakia and France, although the Czechs also offered Aircraft with 7,9 guns in them.
Did they get sold to Republican Spain by SEPEWE in the Spanish Civil War?
Were they sold to the Baltic States still in .303/7,7??
Were they taken by the Soviets in 1939 ? ( many of the Baltic States P14s endded up on the Defence of the Ladoga Ice Road,( Leningrad siege) and the Civilian Militia defence of Moskow (1941-42)
You have made an interesting find…thansk to the Internet, this information will go to Collectors and students of the Fate of the Millions of P14s made by the US for Britain, and hardly used during WW I by them…and of course in WWII they were considered a “Second Line Rifle”.
if you wish to discuss further directly,