From the list:
U.S, model 1911-A-1, .45 cal. pistol, mfd. by Union Switch and Signal Company, prototype model, with S/Ns US&S Exp. 1 to US&S Exp. 100.
* U.S., model 1911-A1, semiautomatic, pistol, cal. .45, mfd. by the Singer Manufacturing Company in 1942, S/N range from S800001 to S800500.
* U.S., model 1911-A1, semiautomatic pistol, cal. .45, mfd. by Remington Rand, bearing S/N prefix of ERRS.
* U.S., model 1911-A1 semiautomatic pistol, cal. .45, produced as original factory cut-a-ways.
* U.S., Rifle, cal. .30 M1, original military issue only, produced prior to 1956.
* U.S., Rifle, cal. .30, MC-1952, equipped with telescopic sight mount MC, telescopic sight MC1, marked U.S.M.C. or Kollmorgan.