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Precious US stamp from 1868 expected to sell for eye-popping sum: 'Rarest of the rare'
The Benjamin Franklin Z-grill is one of the rarest and most sought ... Very, very few were 1 cent, 10 cent and 15-cent stamps." Trepel also emphasized the historical importance that the June ...
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Most Valuable Stamps in the World
In July 2013, one of these stamps sold for $889,765 at auction in Hong Kong. The Benjamin Franklin Z Grill is a 1-cent stamp from 1868 created with a briefly used grill that left tiny Z-shaped ...