"This book belongs on the shelf of every collector of American coins. Brad Karoleff's "Introduction" alone, explaining the history of the coin is worth the cover price. Since modern collecting leans heavily to errors and varieties, any collector of any series can benefit from the scientific methodology for identifying die marriages. Dr. Peterson's work sets the standard for the coming century.

Collectors of Bust Half Dollars are close on the heels of Early American Copper collectors at setting the pace for studious examination of numismatic materials. This book narrows that gap."