David Hall: There is only one known specimen of this gold pattern and it is in the permanent National Coin Collection at the Smithsonian Institution in Washington DC.
On May 9, 1843, Matthew Stickney, a coin collector who could only be called "advanced" by today's standards, visited the United States Mint and traded a 1785 "Immune Columbia" Cent overstruck on a 1775 British gold Guinea (plus some other American Colonial coins) for an 1804 Silver Dollar. Stickney claimed to have acquired the Immune Columbia from the New York bullion dealers, Beebee & Parshall, the day before. The gold Immune Columbia still resides in the National Numismatic Collection at the Smithsonian Institution and no other has ever appeared on the market. Stickney's 1804 Silver Dollar sold on April 6, 1997 for $1,815,000 as part of the Eliasberg collection and now resides in a PCGS Proof-65 holder in a private collection.
Sources and/or recommended reading:
"Walter Breen's Complete Encyclopedia of U.S. and Colonial Coins" by Walter Breen, p. 119
Auctions by Bowers and Merena, Inc., "The Walter H. Childs Collection" sale catalog, August 30, 1999, pp 110-111
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