Numismatic Literature. Berman, Allen G., Papal Coins, South Salem, New York, USA 1991, 250 pages, hardcover with dust jacket, published by Attic Books Ltd, a complete catalog of the coins of the popes from St. Gregory III (731-741) through the present. Includes 77 plates, valuations of every known type, historical information, and assistance in identifying coins. The book is set up much in the manner of Sears books on Roman, Greek and Byzantine coinage.
