Inverted Jenny

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Inverted Jenny stamp

The "Inverted Jenny" is a misprinted U.S. postage stamp showing an inverted image of a blue airplane. The error occurred on the 24-cent airmail stamp of 1918. Only one sheet of one hundred inverted center stamps was sold, and no other examples have been discovered.

Glossary: Inverted Jenny

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Stamps

24-cent Inverted Jenny stamp with upside down airplane

24c Curtiss Jenny Invert Single

This 24-cent stamp represents plate position 70 of the only sheet of 100 inverted Jennys sold by the Post Office Department. Because the bicolor stamp was printed from two printing plates (one for the carmine-colored stamp frame, one for the blue vignette), the error resulted from the misfeeding of sheets or the misorientation of one of the plates.

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24-cent Inverted Jenny stamp with upside down airplane

24c Curtiss Jenny Invert Single from the Jefferys Collection

Harry L. Jefferys bequeathed this stamp with his collection to Philadelphia's Franklin Institute in 1948. The Smithsonian's National Postal Museum received the Jefferys collection from the Franklin Institute in 2008.

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