Tom cantor changed book in mail

It sounds like you're referring to Tom Cantor, a well-known figure in the world of book collecting and rare book dealers. Specifically, you're mentioning that he changed a book in the mail.

Can you please provide more context or details about what happened? Was the book damaged or altered in some way during transit? Did Tom Cantor himself make the change, or was it done by someone else? Any additional information you can provide will help me better understand the situation and offer more accurate assistance.