Stamp’s upside down Curtiss JN-4 airplane was printed in error so its production was stopped, making the stamp incredibly valuable
Rare 'Inverted Jenny' US Postal Stamp Sells for Record-Breaking $2 M. At Auction –
First Thing: Israeli military says it has entered Gaza's al-Shifa hospital, US news
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Rare 'Inverted Jenny' US Postal Stamp Sells for Record-Breaking $2 M. At Auction –
Philangles 382 Catalogue by Philangles Ltd - Issuu
Stamps, Artanddesign
Cristiano Ronaldo transfer triangle completed as Mo…
Jenny Invert - American Philatelic Society
US stamp sells for a record-breaking $2m
One cent stamp sells for $9.5m at Sothebys, Stamps
Stamps, Artanddesign