The product is a 1903 copyright Ropp's Commercial Calculator Short Cut Math hardcover Pocket Book published by C. Ropp in Chicago, USA. This antique pocket book is a valuable collectible item for those interested in reference books and mathematics. With its hardcover binding and special attributes such as the 1903 copyright, this pocket book serves as a unique piece of history from the early 20th century, offering a glimpse into the mathematical practices of the time. A must-have for collectors and enthusiasts of vintage books and American history.

160 pages

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