USS UNION (AKA-106) postmarked cover
Mailed on Feb 15, 1966

Franked with a pair of 1953 3¢  "Dutch Ship in New
Amsterdam Harbor" stamps

Laid down, 27 September 1944, as SS North Carolina
Final Disposition, sold for scrapping in September 1977

NavSource bio link: https://www.navsource.org/archives/10/02/02106.htm
 for full history.

This cover is in very good+ condition with no tears, creases, or scuffs.

See pics for overall condition and appearance.