Interesting helmet find

[BEAR]

Thanks
According to Mark A. Reynosa's book U.S. HELMETS OF THE 20TH CENTURY, McCord Radiator and Manufacturing Co. only manufactured the M1917A1 from November 1940 to May 1941. They only produced 904,020 helmets before they were replaced by the M1. However, many of the M17's were outfitted with the A1s liner.

The helmet stamp is 5A. That would seem to be an early helmet since I have another A1 stamped 11A. Reynosa's book does not address the stamps or years associated with these stamps.

BEAR