A History of the Submarines Built at the
Mare Island Naval Shipyard

Exhibit by Steve Shay
Frame 2, Page 6


USS Trepang SS-412
Balao class (No reported postmarks)
Launched March 23, 1944

Commissioning cover, unknown cachet design artist, Type Fz shipyard shore cancel.

Cover 671: Trepang SS 412, May 22, 1944

Made 6 war patrols in the Pacific during World War II. Sank 11 ships for 23,850 tons. On first patrol, during surface attack near Tokyo Bay in October 1944, was thought to damage a battleship while sinking a destroyer. Skipper Commander Roy Milton Davenport received fourth Navy Cross for these actions. (Study of Japanese records could not verify these claims.) Decommissioned June 1946 at Mare Island, sunk as target ship September 1969.

 

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