First Day Covers (set of 2)

Commemorate the 2026 World Stamp Expo and celebrate the 250th anniversary of the founding of our nation with this set of 2 First Day Covers.

Each #6 ¾ envelope bears a different affixed Boston 2026 World Stamp Show Forever® stamp canceled with an official First Day of Issue postmark. 

The postmark features the name, date, and location of the stamp issuance in a design based on the stamp artwork.