The error image, part of a sheet of 100, was printed in 1918 and featured on an episode of The Simpsons.
Auctions Hypebeast
Rare Inverted Jenny U.S. Postage stamp sold at auction for record-breaking $2 million to NY collector : r/interestingasfuck
A Brief History of Postage Stamp Collecting, by Heiwhite
Cooking Fish, plate from A Brief and True Report of the New Found Land of Virginia by Thomas Harriot (1560-1621) pub. 1590 - John White - , the largest gallery in the world
Robert A. Siegel Auction Galleries, Inc. Sale - 1185 Page 13
13 Most Valuable Postage Stamps in the U.S. and the World
The Holy Family with the Lamb, 1507 - (after) Raphael (Raffaello Sanzio of Urbino) - , the largest gallery in the world
The Allied Army Crossing the Rhine to Invade France, 1813, from 'Historic, Military and Naval Anecdotes', 1816 - John Heaviside Clark (after) - , the largest gallery in the world
Rare Inverted Jenny Airmail Stamp Sells for Record Price of $2 million
Rare 1918 'Inverted Jenny' US stamp sells for record-setting $2m, US news
Robert A. Siegel Auction Galleries, Inc. Sale - 1185 Page 13