1941 U.S. Submarine BARRACUDA Cachet Submarine Mail with onboard cancellation, standard size envelope, the Barracuda was built in 1921 and launched in 1924, saw action in WWII, "...She operated on training problems with destroyers, other submarines, and planes in Block Island Sound. Barracuda arrived at Philadelphia Navy Yard on 16 February 1945; was decommissioned 3 March 1945; and sold 16 November 1945...." - Wikipedia
Consistent with age and use.
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