National Postal Museum Se-Tenant Block of Four (Scott 2779-2782)

The cachet features a sepia-toned engraving of the old Post Office building at 9th & E NW in Washington, D.C., accompanied by explanatory text about Congress establishing the U.S. Post Office as an executive department on June 8, 1972, with a decorative red initial 'O'. The stamps form a se-tenant block of four 29-cent National Postal Museum stamps depicting: an airmail pilot with early aircraft and train, classic stamps with handwritten letter, Benjamin Franklin with a printing press, and a mail carrier with stagecoach. The cancellation is a machine cancel reading 'WASHINGTON DC 20066 / JUL 30 / 1993' with a 'FIRST DAY OF ISSUE' slug. The cover is in excellent condition with crisp imagery and clean margins.

This First Day Cover features a sepia-toned cachet with an engraving of the historic Post Office building in Washington, D.C., commemorating the establishment of the U.S. Post Office as an executive department. The cachet includes text detailing the building's history and a cooperative effort between philatelic societies. The se-tenant block of four 29-cent stamps depicts postal history themes: an airmail pilot, classic stamps, Benjamin Franklin at a printing press, and a mail carrier with a stagecoach. The postmark is a circular, machine-applied cancellation with the text 'National Postal Museum' and a clear date. The cover is in pristine condition.