Cork and Chain/Cork and Twine
Your choice of either a Cork & Chain or a Cork & Hemp twine replacement for all metal canteens. Corks with chain stoppers are most commonly associated with issuance through the New York Depot. Twine was common on all others including Philadelphia and St. Louis. It was not uncommon, however, to see corks replaced with whatever style was available.
Original M1858 Tin Canteen with Twine and Cork Stopper.
Original Bullseye Canteen with Jack Chain and Cork Stopper.