"For more than fifty years The Atwood-Coffee Catalogue has been the comprehensive listing of United States and Canadian Transportation Tokens. The 2020 seventh edition revised is now available in a PDF format, and you can't beat the price. It's free to all members of the American Vecturist Association. A digital, worldwide membership in the AVA is US $10 and includes The Fare Box monthly newsletter. Use the linked application form and email to Mr. Peter Irion, AVA Secretary: petervt@aol.com