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The Story Behind World's Most Valuable $5 Million Rare Stamp Auction
Siegel Auction Galleries in New York will host an auction featuring the most ... stamp ever known. This particular stamp, ...
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Why a 1-Cent Postage Stamp Could Sell for $5 Million
The auction will mark the first time the rare stamp is up for sale ... are used and have cancellation marks. “Most of [the Z-grill stamps] were 2-cent and 12-cent stamps. Some were 3-cent ...