1954 4¢ Eagle in Flight
Issue Date: September 3, 1954
City: Philadelphia, PA
Printed By: Bureau of Engraving and Printing
Printing Method: Rotary press printing
Perforations: 11 X 10 ½
Color: Bright blue
Although valid for all airmail purposes, this 4¢ stamp was issued primarily for the convenience of sending picture post cards by air.