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"Yes, but it appears they are post WWII chinstraps which appear to be clipped on the loops. I could be wrong but I dont think the 50s/60s era jump helmets are that uncommon.\n \n"
<https://www.usmilitariaforum.com/forums/index.php?/topic/372268-should-i-restore-this-m1-helmet-shell-or-should-i-keep-it-the-same/#comment-2937191>