#C79a – 1973 13c Airmail Envelope,bklt 5+1lbl
U.S. #C79a
1973 13¢ Winged Letter
 
Issue Date: November 16, 1973
First City: New York, New York
Quantity Issued:  unknown
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforation: 11 x 10 ½
Color: Carmine
 
U.S. #C79 was released in anticipation of an airmail postal rate increase from 11¢ to 13¢ for each ounce of domestic airmail. This is in booklet form.
 
 
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U.S. #C79a
1973 13¢ Winged Letter
 
Issue Date: November 16, 1973
First City: New York, New York
Quantity Issued:  unknown
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforation: 11 x 10 ½
Color: Carmine
 
U.S. #C79 was released in anticipation of an airmail postal rate increase from 11¢ to 13¢ for each ounce of domestic airmail. This is in booklet form.