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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.

    Lapwing Class Minesweeper
    Keel Laid 25 October 1917 - Launched 4 March 1918

  1. USS OWL Minesweeper No. 2
    Commissioned 11 July 1918

  2. USS OWL AM-2
    Designated (AM) 17 July 1920

  3. USS OWL AT-137
    Reclassified as Ocean Tug (AT) 1 June 1942

  4. USS OWL ATO-137
    Reclassified as Ocean Tug (Old) (ATO) 15 May 1944
    Decommissioned 26 July 1946

    Struck from Naval Register 1946
    Sold 27 June 1947 for scrap

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 Owl ATO-137 Covers Page 1    (1935-40)



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


Locy Type
3r (A-TBT)





Locy Type F


USCS Postmark
Catalog Illus. CD-2


Cachet by George V. Sadworth


Locy Type F

USCS Postmark
Catalog Illus. O-17


Navy Day. Cachet by C. Wright Richell, sponsored by Joseph F. Koehl, Henrik Wilson and Tazewell G. Nicholson.


Locy Type

USCS Postmark
Catalog Illus. CD-3b, "2"




Locy Type 3 (A-TTB)
USS Whitney AD-4

Locy Type SLKbs (87x9)
USS Owl AM-2


First Day of Commission - USS Acushnet AT-63. Cachet by the Naval Cachet & Cancel Club, sponsored by Tazewell G. Nicholson. From the Tom Kean collection.


Locy Type


Cachet by Naval Cachet And Cancel Club.


Locy Type SL


Additional postmark from Norfolk, VA. Date is typed on the cover.


Other Information

USS OWL earned 1 Battle Star for her WWII service.

NAMESAKE - The medium-large mainly nocturnal raptor.

Two ships of the US Navy have borne the name OWL - USS OWL ATO-137 and USS Owl AMCU-35.



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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