This stamp was announced by the USPS on March 6th:
The familiar symbolism of a Marine Corps emblem appears on this stamp to celebrate the 250th anniversary of the U.S. Marine Corps. First established during the Revolutionary War as the American colonies fought for independence, the Marine Corps is respected worldwide as an elite fighting force, prepared to face any challenge and prevail in the conflicts of the 21st century. Antonio Alcalá, an art director for USPS, designed the stamp.
No date of issuance or city was given. The latest information will appear below the line, with the most recent at the top.
