| 500x286 | 38K | jpg free download |
| 119x68 | 3K | jpg free download |
| 787x450 | 86K | jpg free download |
| 1050x601 | 128K | jpg free download |
| 1400x801 | 186K | jpg free download |
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| Image title: | A Calculating Machine |
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| Source: | Various: “The Leisure Hour” (1904) |
| Place shown: | none |
| Keywords: | machinery, greyscale |
| Status: | out of copyright (called public domain in the USA), hence royalty-free stock image for all purposes usage credit requested Please do not redistribute without permission, since running this site is expensive. |
Showing the numbers (in black marks) struck on the register, and the keys struck to multiply 2253 by 84. The answer is shown on the register.” (p. 775) This is a hand-operated calculator. |
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| Dimensions: | 130 x 73mm (5.1 x 2.9 inches) |
| Filename: | tn/0775-A-Calculating-Machine-q75-500x286.jpg |
| Blog image: | http://fromoldbooks.org/r/1D/0775-A-Calculating-Machine-q75-500x286.jpg |
| Blog link: | http://fromoldbooks.org/r/1D/pages/0775-A-Calculating-Machine/ |
| Scanner dpi: | 2400 |
| Comment: | Add a link, leave a comment or change keywords |