The error image, part of a sheet of 100, was printed in 1918 and featured on an episode of The Simpsons.
Jenny Invert stamps, 1856 1¢ Magenta among Linn's top headlines for 2014
The Holy Family with the Lamb, 1507 - (after) Raphael (Raffaello Sanzio of Urbino) - , the largest gallery in the world
Rare 1918 US stamp with 'Inverted Jenny' plane error sold for record-breaking $2 million - Trending News
USPS issues surprise $2 INVERTED Inverted Jenny stamps! - Page 9 - STAMPBOARDS - Postage Stamp Chat Board and Stamp Forum
Rare 1918 'Inverted Jenny' US stamp sells for record-setting $2m : r/news
Hermés Heir's Auctions Start with a White Glove Sale at Sotheby's Paris for $25 M. – 英國華僑華人美術家協會
Simplon Pass: Chalets - John Singer Sargent - , the largest gallery in the world
Discovered: A Dozen Philatelic Oddities
New report brings upright Jenny Invert tally count to 43
A Rare 'Inverted Jenny' Stamp Sold for a Record-Breaking $2 Million at Auction