My M1917 helmet as the code "ZC1" under the brim. I assume that is a makers mark. If so, does any one know who the manufacturer is? Thanks.
My M1917 helmet as the code "ZC1" under the brim. I assume that is a makers mark. If so, does any one know who the manufacturer is? Thanks.
Last edited by cwbuff; 07-26-2010 at 01:14.
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