This First Day Cover features the 13¢ Colorado commemorative stamp, postmarked in Denver, Colorado on May 21, 1977. The stamp depicts the Rocky Mountains and the Colorado columbine, the state flower, with the inscription “The Centennial State.”
Colorado entered the Union on August 1, 1876; the 1977 issue marked the state’s centennial. The design emphasizes Colorado’s alpine scenery and natural heritage during the nationwide bicentennial era.
The cover carries a crisp “FIRST DAY OF ISSUE” hand cancel and bears a typed address to Philadelphia, Pennsylvania. No cachet illustration appears, making this an example of a plain but authentic official FDC.
A clean, well-centered addition for collectors of U.S. statehood stamps, flora topicals, or 1970s First Day Covers.
