- Paper Money of the United States: A Complete Illustrated Guide With Valuations (Paper Money of the United States)
- A Guide Book Of United States Paper Money: Complete Source for History, Grading, and Prices (Official Red Book) (Official Red Book)
- A Guide Book of United States Paper Money
- Coins of the Bible
- Gold Coins of the World: From Ancient Times to the Present: An Illustrated Standard Catalogue with Valuations (Gold Coins of the World, 7th Ed) (Gold Coins of the World)