US Coins

Landmark book available free: Can download in pdf format from LOC

I very much enjoyed Joel Orosz’s column “Heaton’s revolutionary book: First reference about Mint marks” in the April 28, 2014, issue of Coin World. 

The book, A Treatise on the Coinage of the United States Branch Mints (1893), is available for download in pdf format at no cost from the Library of Congress at

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