jcp Posted December 3, 2020 Share #1 Posted December 3, 2020 Any tips to help read the stamped number on the M1 helmet? I see the S for Schlueter but interested in finding production date. I assume cleaning or scrubbing the helmet is not recommended. I can read the Firestone liner logo and number but not the helmet. Link to comment Share on other sites More sharing options...
earlymb Posted December 4, 2020 Share #2 Posted December 4, 2020 You could try to rub it with some WD40 or some chalk to see if that improves contrast? Link to comment Share on other sites More sharing options...
aef1917 Posted December 5, 2020 Share #3 Posted December 5, 2020 Production dates for WWII M1 helmet lots are not known outside of a tiny handful that have been found in period documents. The charts you see online are educated guesswork based largely on the observable physical attributes (fixed loop, front seam, stainless rim, etc.) of a relatively small sample size of helmets. Messing around with a helmet to find the lot number is a fool's errand at best and often causes irreversible damage. Don't do it. Link to comment Share on other sites More sharing options...
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