Inverted Jenny Stamp Value Guide

The 1918 Inverted Jenny is arguably the most famous philatelic rarity in the world, born from a printing error where the Curtiss JN-4D biplane was accidentally printed upside down. Only a single sheet of 100 stamps escaped the post office, making any surviving example a pinnacle of American stamp collecting.

What Is Inverted Jenny Stamp Worth?

• Centering of the design, as many examples from the original sheet have narrow or uneven margins.
• The condition of the gum, with 'Never Hinged' (NH) examples commanding the highest premiums.
• The brightness of the red and blue inks, which can fade if exposed to light or improper storage.
• The specific position number from the original sheet of 100, as some positions have better-documented provenance.

How to Identify Inverted Jenny Stamp?

• Verify the central blue Curtiss JN-4D biplane is oriented upside down within the red frame.
• Check for the 24-cent denomination and the distinct carmine rose and blue color scheme.
• Look for the original 1918 gum on the reverse, though many examples have been hinged over time.
• Confirm the presence of a certificate of authenticity from a recognized body like the Philatelic Foundation.

History of Inverted Jenny Stamp

The Inverted Jenny is one of the most famous and valuable stamps in the world due to a printing error in 1918. A sheet of 100 stamps was accidentally printed with the central image of the airplane upside down. Despite efforts to destroy the misprinted sheet, it was sold to a collector, leading to its legendary status among philatelists. Only a small number of these stamps are known to exist today, making them highly sought after.