United States | It All Depends On Zip Code Block of Four 10-Cent United States Postage Stamps Issued 1974 Multicolored

Description

This block of four 10-cent postage stamps was issued by the US Post Office to encourage mailers to use zip codes in addresses.
Issue Date: January 4, 1974
First City: Washington, D.C.
Printed By: Bureau of Engraving and Printing
Printing Method: Photogravure
Perforations: 10 x 11 ?
Color: Multicolored
Mint, never hinged condition.