Bidding on an 1855 Branch mint proof half-dollar currently stands at $135,000 at Heritage Auctions, with the live sale due to take place on February 4 in New York.
The coin is one of three known proofs, of which one of is held in the Smithsonian Collection, while the other went missing in the early 1950s.
Only 129,950 of the 1855 half dollars were ever minted, making it one of the rarer dates for its type. Pieces in good condition are considerably rarer, with this uncirculated proof considered the apex.
The piece is in good excellent condition, with superb strikes on both sides.
It sold previously for $170,375 at Heritage Auctions in 2013.
An 1870-CC Double Eagle is another major highlight, currently at $130,000.
The coins were minted in Carson City a decade after the discovery of the Comstock Lode, and are considered the most valuable of the Double Eagle series - with around 50 examples surviving from a 3,789 run.
The piece features light wear, but is otherwise bright and in fine condition. On January 9 of this year, an example sold for $329,000 at Heritage.
The US Coins Signature Auction will also feature an 1897 Double Eagle Ultra Cameo and a 1796 B-2 Quarter Dollar.
We have a range of rare coins available.
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