voila pour les marquages les plus courants
DM = Des Moines Ordnance Plant, Des Moines IA
FA = Frankford Arsenal, Philadelphia PA
KS =Kelly Springfield, Allegheny Ordnance Plant, Cumberland MD
LC =Lake City Army Ammunition Plant, Independence MO
LM =Lowell MA
M =Milwaukee Ordnance Plant, Milwaukee WI
RA =Remington Arms, Bridgeport CT
REM-UMC= Remington-Union Metallic Cartridge, Bridgeport CT
SD =Sparklet Devices, Dover OH
SL= St. Louis Ordnance Plant, St. Louis MOSMCO= Stant Manufacturing Co., Connersville IN
TW= Twin Cities Ordnance Plant, Minneapolis MN
U =Utah Ordnance Plant, Salt Lake City UT - Late
UT= Utah Ordnance Plant, Salt Lake City UT - Early
W= Winchester - Prototype and test rounds
WCC= Winchester-OLIN, E.Alton IL
WRA =Winchester Repeating Arms, New Haven CT