The first known piece of mail sent using a stamp is to be auctioned for up to $2.5 million.
Mandatory Credit: Sotheby's
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Penny Black: ‘First’ piece of mail sent using a stamp could fetch up to $2.5 million at auction
The first known piece of mail sent using a prepaid stamp — “one of the greatest leaps forward in human communication” — could fetch between $1.5 million and $2.5 million when it comes up for auction at Sotheby’s in New York next month.
