G 1 SS 19-1/2

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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.

    G Class Submarine
    Keel Laid 2 February 1909 as SEAL - Launched 8 February 1911
    Renamed G-1 17 November 1911

  1. USS G-1 SS-19-1/2
  2. Commissioned 28 October 1912 - Decommissioned 6 March 1920

    Struck from the Naval Register 6 March 1920
    Sunk as a target during depth charge tests 21 June 1921

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 G-1 SS-19½ 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 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



c 1911


Photograph of SEAL (Her name is still on the bow, pre-Commissioning). From the Bob Govern collection.


Other Information

USS G-1 earned the World War I Victory Medal w/ Submarine Clasp during her Naval career.

NAMESAKE - SEAL - Named for the seal, a marine mammal.

The ships sponsor was Miss Margaret V. Lake, daughter of Simon Lake, the submarine pioneer.

Two submarines of the US Navy have borne the name SEAL - USS Seal (USS G-1 SS-19-1/2) and USS Seal SS-183



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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