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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.

    Skate Class Submarine
    Keel Laid 20 June 1956 - Launched 16 August 1958

  2. Commissioned 5 December 1959 - Decommissioned 12 June 1983

    Laid up in Reserve Fleet
    Struck from Naval Register 30 April 1986
    Disposed of through NPSSRP 18 September 1995

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. USS Seadragon SSN-584 Covers Page 1     (1958-2010)



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

Thumbnail Link
Postmark Image
Thumbnail Link
Cover Image


Pictorial Postmark

"50th Anniversary at /
the North Pole Station"

Nome AK


50th Anniversary of reaching the North Pole. Cachet by the Stephen Decatur Chapter No. 4, USCS


Other Information

USS SEADRAGON earned the Navy Unit Commendation Ribbon, the Meritorious Unit Commendation Ribbon and the National Defense Medal during her Naval career.

NAMESAKE - A small fish commonly called the dragonet.

The submarines sponsor was Mrs. Robert L. Dennison.

Two submarines of the US Navy have borne the name SEADRAGON - USS Seadragon SS-194 and USS Seadragon SSN-584.



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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