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Ship Name and Designation History

This section lists the names and designations that the ship had during its lifetime. The list is in chronological order.

    Balao Class Submarine
    Keel Laid June 25 1943 - Launched March 23 1944

    Commissioned May 22 1944 - Decommissioned June 27 1946
    Reclassified Auxiliary Research Submarine (AGSS) June 11 1962,
    While in reserve

    Struck from Naval Register June 30 1967
    Sunk as target September 16 1969

Naval Covers

This section lists active links to the pages displaying covers associated with the ship. There should be a separate set of pages for each incarnation of the ship (ie, for each entry in the "Ship Name and Designation History" section). Covers should be presented in chronological order (or as best as can be determined).

Since a ship may have many covers, they may be split among many pages so it doesn't take forever for the pages to load. Each page link should be accompanied by a date range for covers on that page.

  1. Covers Page 1     (DATE RANGE)



This section lists examples of the postmarks used by the ship. There should be a separate set of postmarks for each incarnation of the ship (ie, for each entry in the "Ship Name and Designation History" section). Within each set, the postmarks should be listed in order of their classification type. If more than one postmark has the same classification, then they should be further sorted by date of earliest known usage.

A postmark should not be included unless accompanied by a close-up image and/or an image of a cover showing that postmark. Date ranges MUST be based ONLY ON COVERS IN THE MUSEUM and are expected to change as more covers are added.
>>> If you have a better example for any of the postmarks, please feel free to replace the existing example.


Postmark Type
Killer Bar Text

Date From
Date To
Thumbnail Link To
Postmark Image
Thumbnail Link To
Cover Image








Other Information

TREPANG earned 5 Battle Stars for WWII service

Credited with sinking...
The 752-ton Japanese Supply Ship TAKUNAN MARU, October 1 1944 off Ogasawara-Gunto
The 870-ton Japanese Landing Ship T 105, October 11 1944 off Honshu
The 5463-ton Japanese Army Cargo Ship FUKUYO MARU, December 6 1944 off Luzon
The 6862-ton Japanese Merchant Cargo Ship JINYO MARU, December 6 1944 off Luzon
The 748-ton Japanese Troop Transport BANSHU MARU No. 31, December 7 1944 off Luzon
The 875-ton Japanese Merchant Cargo Ship UZUKI MARU, February 24 1945 off Mikizaki, Japan
The 1386-ton Japanese Auxiliary Gunboat NISSHO MARU No. 3, March 3 1945 off Mijake Jima, Japan
The 870-ton Japanese Landing Ship T 146, April 28 1945 off Osezaki, Japan
The 4667-ton Japanese Troop Transport MIHO MARU, April 30 1945 Yellow Sea
The 648-ton Japanese Minesweeper W 20, May 4 1945 off Korea
The 606-ton Japanese Merchant Cargo Ship KOUN MARU No. 2, July 7 1945 off Japan
A small Un-named Japanese vessel, july 14 1945 off Honshu

Awards, Citations and Campaign Ribbons...
Navy Unit Citation - Asiatic-Pacific Campaign Medal (5) - World War II Victory Medal

NAMESAKE - A marine animal sometimes called a sea slug or a sea cucumber found in the coral reefs of the East Indies



If you have images or information to add to this page, then either contact the Curator or edit this page yourself and add it. See Editing Ship Pages for detailed information on editing this page.


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