United States | 1958 Mackinac Bridge Block of Four 3-Cent US Postage Stamps Mint Never Hinged Bright greenish blue

Description

This collectible block of four 3-cent US postage stamps was issued by the US Post office to honor the Mackinac Bridge, which connects the Upper and Lower Michigan peninsulas.
Issue Date: June 25, 1958
City: Mackinac Bridge, Michigan
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforations: 10 ? x 11
Color: Bright greenish blue
Mint, never hinged condition.