United States Proof Coins, Volume IV: Gold is the landmark first release in John Dannreuther’s ambitious four-volume study of America’s proof coinage before 1916. Presented as a deluxe, two-book slipcased set spanning over 1,000 pages, this reference is the most comprehensive work ever published on proof gold coinage.

Part One covers gold dollars through $4 pieces, while Part Two examines half eagles, eagles, and double eagles. Nearly 2,000 full-color photographs provide unprecedented clarity, with every known proof gold variety cataloged and illustrated. Thanks to modern digital photography and microanalysis, collectors can now see die positions, date placements, and subtle diagnostics with a precision never before possible.

Building on and surpassing earlier scholarship such as Walter Breen’s 1977 encyclopedia, Dannreuther’s work brings new information, corrected data, and vastly expanded visual documentation. Collectors will find coin-by-coin listings, die variety analysis, historical context, and practical guidance for identifying and appreciating America’s most desirable proof issues.

This monumental reference secures proof gold coins—the pinnacle of the U.S. craftsmanship—as both miniature works of art and a cornerstone of American numismatics.