This Coin Collector’s Auction offers an extensive selection of U.S. mint issues, with a particular emphasis on gold commemorative and bullion coins. Spanning historical events, national symbols, and proof editions, the catalog features a high concentration of gold offerings that will interest investors and collectors alike.

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Bid online now through Tuesday, July 29th at alderferauction.com. This auction will begin closing at 8 PM at a rate of 5 lots per minute. Active bidding will be auto-extended 3 minutes for each lot once it begins to close.

Numerous American Gold Eagles, including multiple listings of 1/10 oz proof coins, form a core component of the sale. These are complemented by themed issues such as the Gold Columbus Quincentennial Commemorative Coin, Civil War Battlefields Commemorative Gold Coin Proof Set, Gold Liberty Olympic $10 Commemorative Coin, and the Smithsonian Institution 150th Anniversary Commemorative Gold Coin Proof Set.

Olympic commemoratives are well represented with items like the US Mint Olympic Gold Proof Set, Olympic Winter Games Commemorative Gold Coin Proof Set, and US Los Angeles Olympic Gold and Silver Coin Set. Other patriotic and institutional themes appear in the Star-Spangled Banner Commemorative Gold Coin Proof Set, Capitol Visitor Center Commemorative Gold Coin Proof Set, and United States Constitution Bicentennial Commemorative Gold Coin Proof Sets.

Alongside the gold selections, the auction also includes a wide range of silver commemorative coins, including multiple groupings of Washington Commemorative Half Dollars, American Silver Eagles, and themed proof sets such as the Calgary Olympic Winter Games Coin Set, Eisenhower Silver Dollars, and White House 200th Anniversary Coins.

Silver and mixed metal proof and mint sets span decades and formats. These include 1956 and 1958 US Proof Sets, US Special Mint Sets, and a broad selection of Assorted Proof Coin Sets, Uncirculated Coin Sets, and 50 State Quarters Silver Proof Sets. Legacy and themed groupings such as the American Legacy Collections add further depth.

Notably, mixed-metal sets such as the US Liberty Gold and Silver Coin Set and the World War II 50th Anniversary Commemorative Proof Gold Coin highlight dual material commemoratives. These emphasize historical significance and collectible presentation.

This auction is notable for its concentration of U.S. gold coinage, spanning proof, commemorative, and bullion series—particularly American Gold Eagles and Olympic-themed gold proofs. The variety and volume of high-value metals make it a standout event for collectors focused on gold investment and numismatic history.

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