Item description for USPS First Day of Issue: Pure Food & Drug Act (1956) with Postmark

A US Postal Service first day of issue envelope with the "Pure Food and Drug Act" 3 cent stamp, cancelled on Jun 27,1956 in Washington, DC. The envelope measures 6.75" x 3.75" and weighs less than 0.1 ounce. The envelope was posted (see photo).

Shipment is by US Postal Service (Card).