She was lost on 17 Sept 1943 off Japan. It appears she was sunk by a mine on that date. The proud vessel was credited with sinking many enemy ships.
The first day postmark is from Keystone, SD dated June 14, 2024. The color photo cachet #2831 of the actual submarine was prepared by Alvin Eckert USCS #9964. Cover franked with a forever Flag stamp (FDOI) and a 29 cent red submarine stamp # 2838e.
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These items make fine USN gifts when mounted on a colored matte
and placed in a 5x7 picture frame. Free US Shipping!