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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.

    LST-542 Class Tank Landing Ship
    Keel Laid November 5 1943 - Launched March 14 1944

  1. USS LST-603
    Commissioned April 5 1944 - Decommissioned May 12 1955

    Named July 1 1955 while in reserve
    Recommissioned June 8 1966 - Decommissioned April 4 1969

  3. VUNG TAU HQ-503
    Transferred to South Vietnam April 4 1969 and renamed
    Captured by North Vietnamese forces April 1975

    Struck from Naval Register February 28 1986
    Fate unknown

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 LST-603 Covers Page 1     (1944)



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 To
Postmark Image
Thumbnail Link To
Cover Image


Locy Type 7z


JonBurdett lst603 19441008.jpg


Sailor Mail, censored.

2nd Commissioning June 8 1966 to April 4 1969


USPO Slogan
Machine Postmark


Naval Station, Guam


JohnGermann Coconino County LST603 19690205 1 Front.jpg


As Coconino County


Other Information

USS LST-603 / COCONINO COUNTY earned the Combat Action Ribbon (3 awards), the Navy Meritorious Unit Commendation Ribbon (2 awards), the European-African-Middle East Campaign Medal w/ 1 Battle star, the World War II Victory Medal, the National Defense Service Medal (2 awards), the Vietnam Service Medal w/ 7 Campaign stars, the Republic of Vietnam Gallantry Cross Unit Citation Ribbon (3 awards) and the Republic of Vietnam Campaign Medal during her Naval career.

NAMESAKE - Coconino County, AZ.



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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