Collecting World Coins, 1901-Present

Standard Catalog of World Coins 1601-1700

Standard Catalog Of World Paper Money Modern Issues (Standard Catalog of World Paper Money. Vol 3: Modern Issues)

Standard Catalog of United States Paper Money

Krause-Minkus standard catalog of U.S. stamps 1999

Standard Catalog of World Paper Money, Modern Issues, 1961-Present

Standard Catalog of World Paper Money, General Issues, 1368-1960