Submarine Battle Flag from USS Trepang
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Submarine Battle Flag from USS Trepang



WWII era

Category: Maritime Art & Sailor Craft


Battle flags in World War II kept an unofficial record of the number of ships a submarine sank. Warships were represented by the rising sun version of the Japanese flag, while the merchant vessels were represented by the “meatball” flags. The submarine’s logo was also featured on the flag. In this case, a large sea slug breaching from the ocean launching torpedoes. Sewn on a cloth backing in simple black frame.The first USS Trepang (SS/AGSS-412) was a Balao-class submarine in the United States Navy. She was named for the trepang, a marine animal sometimes called a ‘sea slug’ or a ‘sea cucumber’, having a long, tough, muscular body and found in the coral reefs of the East Indies. When the contract to build her was awarded to Mare Island Navy Yard in Vallejo, California, SS-412 was to be named Senorita, which would have made her the only USN ship to be named for the senorita, a brilliantly colored kelpfish found along the California coast. She was renamed Trepang on 24 September 1942, and her keel was laid down on 25 June 1943.She was launched on 23 March 1944 sponsored by Mrs. R. M. Davenport, the wife of the submarine’s prospective commanding officer, and commissioned on 22 May 1944 with Commander Roy Milton Davenport—already a three-time Navy Cross winner—in command. Following shakedown out of San Diego, California, Trepang departed the West Coast on 15 August 1944 and proceeded to Hawaii where her crew trained and prepared the ship for combat. This banner comes with an 11 page copy of first hand accounts of events from two sailors on board the USS Trepang during its deployment.

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US Franksfisherman

Frank's Fisherman - Nautical & Scientific Antiques

Established dealers in all categories of nautical and scientific antiquities based in San Francisco, California. We’ve owned and operated at this location on Fisherman’s Wharf since 1977. We continue to seek, purchase and sell quality, rare and unusual scientific and maritime antiques. Our store is open 7 days a week or visit us at