S-16 SS 121

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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.

    S-4 Class Submarine (Government-type)
    Keel Laid 19 March 1918 - Launched 23 December 1919

  1. USS S-16 SS-121
    Commissioned 17 December 1920 - Decommissioned 22 May 1935
    Recommissioned 2 December 1940 - Decommissioned 4 October 1944

    Struck from Naval Register 4 October 1944
    Sunk as target 3 April 1945 18 miles off Key West, FL

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. USS S-16 SS-121 Covers Page 1     (1927-28)



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

Thumbnail Link
Postmark Image
Thumbnail Link
Cover Image

1st Commissioning December 17 1920 to May 22 1935


Locy Type

USCS Postmark
Catalog Illus. S-6


Last Day of Commissioning.


Locy Type

USCS Postmark
Catalog Illus. S-6a


Last Day of Commissioning. Cachet by B. Saunders Bullard

Misc. Marking


Locy Type SLK

c 1935

From the Paul Huber collection.


Other Information



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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