This reprint of the 1891 catalog of the Harrison Machine Works includes important information on some of the products they made: “Jumbo” engines, “Belleville” threshers, and swinging straw-stackers. It features sections on how Jumbo engines are built, seven reasons why they are the best, the Belleville thresher at work, and many more. Detailed diagrams along the way further illuminate the interesting text. Even if you don’t actually own any of these machines, this book is filled with information on antique agricultural equipment any farm or engine buff could use.