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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.

    Tench Class Submarine
    Keel Laid February 8 1944 - Launched December 16 1944

    Commissioned October 26 1949 - Decommissioned May 13 1972

    Struck from Naval Register May 13 1972

  2. RIO GRANDE DO SUL S-11 (Brazilian Naval Service)
    Transferred to Brazil and renamed

    Struck by Brazil 1978
    Sold June 18 1981 to Verlome Shipyard, Angra Dos Reis, Brazil


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 name of the ship (for example, Bushnell AG-32 / Sumner AGS-5 are different names for the same ship so there should be one set of pages for Bushnell and one set for Sumner). 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     (1949)



This section lists examples of the postmarks used by the ship. There should be a separate set of postmarks for each name and/or commissioning period. 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

Ship had no post office


Locy Type
FDC SLKb(n) (70x7)


First Day in Commission (date on card back)
Unlisted in USCS Postmark Catalog as FDC


Locy Type

USS Orion
AS 18





Other Information

NAMESAKE - A species of dolphin



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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