United States Commemorative Postage Stamp, A Tribute to U.S. Postal Service Employees, U.S. Mail, Clerk Case Mail Sorting, USPS,
Issued April 30, 1973, United States Postal Service, First Day of Issue Cover, FDC, Fleetwood Engraving Cachet, A Salute to United States Postal People,
Unaddressed, Ideal for Framing, Cover in Removable Transparent Poly Sleeve and Mailed With Protection,
Made in the USA
Genuine First Day of Stamp Issued Cover Cancelled on the First Day of Issue Date by the U.S. Postal Service,
