The Case of the Dumb Bells by Crosby Bonsall, an I Can Read Mystery. Copyright 1966. Published by Harper and Row, printed in the United States. Ex Libris. In fair condition. There is major wear to the covers, cover edges, and the spine. The previous owner’s name is written in small print on the spine and the title page. There is also a stamp on the title page indicating that it is an ex-library book. No stains, tears, or other writing inside. Hardcover.