Most rare coins experts expect these to become the most valuable modern coins ever sold, Stack's Bowers Galleries claimed. The mission, STS-93, most prominently helped deploy the Chandra X-Ray ...
Seven gold coins, once flown more than 2 million miles in orbit aboard the Space Shuttle Columbia in July 1999 and valued at more than $1 million apiece, are set to be auctioned for the first time ...
A group of gold commemorative coins that traveled into orbit aboard an infamous NASA space shuttle recently fetched a series of historically high bids at auction. Ever since a collection of Sacagawea ...
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