New old stock black leather mounted style campaign hat chinstrap used by US Army and USMC officers. Length is adjustable. It is meant to go through the grommets on the hat brim and cannot be worn without a hat cord. I believe these are post-WWII production and were made by Bucheimer Leather Co. See the 9 pictures (they enlarge), they are part of the item description and shows the details of the item. Contact me with any questions.
Please check my other listings.
U.S. sales only. (Tape measure not included.)
Thanks for looking!