Vintage Mechanical Adding Machine, The Lightning Calculator Co. Los Angeles, CA
USD 35.00 USD
Specifications
| Country Of Origin | United States |
The Lightning Calculator is early dial calculator first made in 1915. Operation: There are 7 dials. Through a hole in a dial its current digit is displayed. To add a number, set your stylus next to the digit you want to add and use it to turn the dial clockwise as far as possible.
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