Andrew W. Pollock III
Hardbound. 510 pp. Extensively illustrated with bibliography and appendices.
A comprehensive reference on experimental coins (usually called "patterns") produced at the U.S. Mint from 1792 to modern times. More than 2,000 different varieties are listed. Almost all of the design types are illustrated. Variety listings are accompanied by rarity ratings, auction price records, and in many instances, a census of known examples.
The book is arranged as follows:
Published in 1994 by Bowers and Merena.