A big thank you to @britishdetectives for my delightful mug - the Earl Grey went into it like a shot! And splendid “literary swan’ lol, I’m petrified to open it to see which book it’s from in case I can’t get it back again :o)
"When a 24-cent stamp debuted on May 14, 1918, to commemorate the start of the first regularly scheduled airmail service, collectors knew it had been rushed into production, and would be printed in two colors, which meant that rare and valuable errors might slip into circulation. Even so, William T. Robey of Washington, D. C., was flabbergasted to discover a sheet of 100 stamps mistakenly showing the Curtiss JN-4H, the biplane known as the ‘Jenny’, upside down. ‘The clerk reached down under the counter and brought forth a full sheet,’ Robey recounted 20 years later, ‘and my heart stood still.’ He would soon learn that he had purchased the only sheet of erroneous stamps to fall into public hands.
Airmail service began the next day between Washington, Philadelphia, and New York, thanks to pioneering aviators like Reuben H. Fleet (Shown on the front of the stamp sheet). Over time, the Inverted Jenny sheet was broken up and sold, creating some of the most coveted collectibles in the world.
Today, two Inverted Jenny stamps soar among the treasures at the Smithsonian’s National Postal Museum in Washington, D. C. With the opening of the William H. Gross Stamp Gallery in 2013—the museum’s 20th anniversary—visitors will also see a loaned block of four Inverted Jennys, one of only a handful in existence, in a setting that honors the innumerable ways one stamp can turn a moment in history upside down.”
Mr. Foyle admiring an Inverted Jenny in “Eternity Ring”
MK can come and admire my reprints of the Inverted Jenny anytime he wants! Just stamp him and Airmail him my way! (Just be sure you put a note on him…”handle with care”!)