stahlhelm

  1. Grey Havoc

    WWI era French M15 Adrian helmet superior in some respects to modern U.S. Army Advanced Combat Helmet

    https://gizmodo.com/helmets-from-wwi-just-as-protective-against-overhead-bl-1841700511 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0228802
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