This book is American Clocks: A Guide to Identification and Prices, written in 1989 by Tran Duy Ly. This book is soft cover with 320 pages and is the result of exhaustive horological research. The illustrations are from original factory catalogs. These pictures are in sharp details and may be used with the utmost confidence by the purchaser and restorer of antique clocks. This is a most valuable book for the researcher. The clock companies are introduced in alphabetical order with a brief history of each clock factory. A former watchmaker has added a 1990 price update. This is a good book to have on hand and belongs in your library. The pages are falling out. Poor condition. – Book 2,656