First, a book with two ISBNs - I discovered one a few years ago: the second edition of The Charlton Standard Catalogue of Canadian Bank Notes 1989, card cover version. The copyright page and back cover have different ISBN numbers. The hardcover version is not similarly afflicted. I have also noticed that the 1979 Charlton Coin Guide, 19th edition has an ISBN of 0889680000. Does that mean it was the first Charlton with an ISBN?

Now, a book with three very different titles: 1980, Tannahill, Cecil, An Illustrated Edition on Banking, Trade Tokens, Paper Money & Scrip Used in the Territory and Province of Saskatchewan (from the title page) or Saskatchewan Trade Tokens, Paper Money, Scrip (front cover), or Saskatchewan Numismatica (from the spine). Always confusing when I see it in a for-sale list.