United States Gold Coinage Die Varieties 1795-1834
Pollock III, Andrew W. (1995)
Book Summary
Pollock examined approximately 10,400 auction appearances of examples of early U.S gold coins and attributed pieces using the Breen numbers published in Numismatic Scrapbook Magazine between 1963 and 1967. The most valuable aspect of this work are the condition censes that Pollock developed for each variety. Publication date is approximate.