1918 Curtiss Jenny airmail stamps
The 1918 Curtiss Jenny Air Mail Stamps were a set of three Airmail postage stamps issued by the United States in 1918. The 24¢ variety was the first of the stamps to be issued, and was in fact, America's first Airmail stamp.. The 16¢ and 6¢ varieties were issued later in the year to reflect reductions in the postage rate. It features the image of the Curtiss JN-4 airplane.
The order of the Scott Catalog numbers for these stamps is the inverse of the order of release dates for the stamps.Individual stamp designs
A single sheet of 100 of the two-color 24¢ was printed with the center design inverted, thus creating the Inverted Jenny.