July 11, 12pm MT

This presentation covers a variety of errors and environmental issues that can affect paper money, such as ink starvation errors, offset errors, other printing defects associated with the several steps in creating US notes, and color changelings.

Joseph Boling began collecting numismatic items in the 1950s, and is a specialist in Japanese numismatic emissions and world counterfeit paper money. Colonel Boling has been the ANA’s chief exhibit judge for 26 of the past 33 years. He has trained ANA judges since 1986. He has taught at the ANA’s summer seminar since 1999, teaching, co-teaching, or guest lecturing in over a dozen courses. He was elected to the ANA’s Hall of Fame in 2023.