| Marchant Calculator - 1923 |
 |
| "The Marchant Hand Driven Keyboard Calculator
was manufactured circa 1923. The serial number of this particular
machine is H-9-6309." Jay M. Goldman “The keyboard model appeared in 1923. It possesses self-correcting keys, a repeat key, a repeat disabling key, and a keyboard clearing key. The setting windows are at the very top left; a revolution counter is arranged to the right of the settings windows; the result mechanism is located underneath the moveable carriage ...." Ernst Martin http://www.jmgoldman.com |
Courtesy of: Jay M. Goldman |