With the anticipated arival of an M1 Carbine in the next couple of weeks I have purchased some mags and decided to do some digging to see who made them. I came across this site and have posted the codes here for the 15rnd mags there is more info on the site so I have also included the link. (Mods I didn't know if here or milsurps was the place for this feel free to move it.)
http://www.rawles.to/M1_Carbine_Mag_FAQ.html
Inland Division of General Motors AI A1 IA II UI KI KI [inverted] II [circled] SI [circled] AI Note: Inland codes including an "A" were reportedly made by Autorye Co. For GM Inland Division
C. Cowles & Co. C
Saginaw Steering Divison of G.M. KSG S'G' OI-S'G' G- S'G' SP-S'G'
and some more Saginaw codes... U-S'G' O-SG K-S'G' ISG KSG (inverted)
IBM SY-B OI-B OI B
International Silver IS
Irwin Pedersen K-IP I-P-K IP-I C-IP UP
National Postal Meter UN MN
Quality Hardware UQ QU G-Q
Rock-Ola IR R-C RO RC R-G UR
Rugg Mfg. Co. (Greenfield, MA.) RUGG
Seymour Smith SS SS-4 R-SS
Standard Products SO SP
Stanley Works SW
Underwood IU LU UU IU [circled]
Union Hardware U
Wade Electric Products WEP [in curved type]
Winchester BW IW UW IW [circled]
And here are some as yet unidentified maker's marks... (Please send me an e-mail if you know for certain who made these.):
B [circled] (I've seen some cases of 100 that were marked Winchester, but packed with these "B" magazines-- could they be a subcontract from Bridgeport?)
C+B
I.I.P.
S-C [stamped sideways]
O-S [in curved type]
SI
SL [circled]
SQ struck out with a line, and SP-SG beneath it.
UP
http://www.rawles.to/M1_Carbine_Mag_FAQ.html
Inland Division of General Motors AI A1 IA II UI KI KI [inverted] II [circled] SI [circled] AI Note: Inland codes including an "A" were reportedly made by Autorye Co. For GM Inland Division
C. Cowles & Co. C
Saginaw Steering Divison of G.M. KSG S'G' OI-S'G' G- S'G' SP-S'G'
and some more Saginaw codes... U-S'G' O-SG K-S'G' ISG KSG (inverted)
IBM SY-B OI-B OI B
International Silver IS
Irwin Pedersen K-IP I-P-K IP-I C-IP UP
National Postal Meter UN MN
Quality Hardware UQ QU G-Q
Rock-Ola IR R-C RO RC R-G UR
Rugg Mfg. Co. (Greenfield, MA.) RUGG
Seymour Smith SS SS-4 R-SS
Standard Products SO SP
Stanley Works SW
Underwood IU LU UU IU [circled]
Union Hardware U
Wade Electric Products WEP [in curved type]
Winchester BW IW UW IW [circled]
And here are some as yet unidentified maker's marks... (Please send me an e-mail if you know for certain who made these.):
B [circled] (I've seen some cases of 100 that were marked Winchester, but packed with these "B" magazines-- could they be a subcontract from Bridgeport?)
C+B
I.I.P.
S-C [stamped sideways]
O-S [in curved type]
SI
SL [circled]
SQ struck out with a line, and SP-SG beneath it.
UP