This 1976 First Day Cover features the 13¢ Colorado state flag stamp, postmarked in Washington, DC on February 23, 1976. The cachet depicts the Colorado State Capitol building, the state seal, and commemorates Colorado as the 38th state admitted on August 1, 1876.
Colorado entered the Union during the centennial year of the United States, earning it the nickname “The Centennial State.” The stamp’s design reproduces the official state flag with its distinctive red “C,” blue and white bands, and central gold disk, issued as part of the nationwide Bicentennial celebrations.
A notable detail is the cachet’s inclusion of both the capitol illustration and the full state seal, tying the postal issue directly to Colorado’s 1876 statehood. The cover carries the official “Bicentennial Era 1776-1976” and “First Day of Issue” markings.
A fine addition for collectors of state flags, U.S. bicentennial issues, or Colorado postal history, this cover displays sharp postmarks and clean cachet artwork.