1988 45¢ Samuel Langley
Issue Date: May 14, 1988
First City: San Diego, California
Quantity Issued: 201,150,000
Printed by: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Aviation pioneer Samuel P. Langley is pictured on this stamp with his Aerodrome No. 5 – the first American heavier-than-air machine to make a free flight of any significant length.