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THE INVERTED BIPLANE STAMP
The “Upside Down Jenny” is a 1918 US postage stamp featuring a picture of an airplane.
On 100 of the stamps, the plane was accidentally printed upside down. This error has made them famous and prized by collectors.
If you find one, it may be worth $500,000 or more.
Nipper's inverted biplane stamp blew away during recess.
TAKE A CLOSER LOOK AT THINGS
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