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May 2026 Stamp Watch: The 250th Anniversary Debut, Stamp Encore Reveal, and the Mint Sets You Can't Miss

May 2026 isn't just another month on the philatelic calendar; it's the launchpad for the U.S. Postal Service's 250th anniversary festivities, centered around the World Stamp Show in Boston. With the ...
Morningstar

USPS Announces Stamp Issues for World Stamp Show

WASHINGTON, March 31, 2026 /PRNewswire/ -- The U.S. Postal Service today announced the stamp issues that will be premiered at the Boston 2026 World Exposition, the 12th international philatelic ...