Image: EarlyComptometerMachine
Size of this preview: 394 × 600 pixels. Other resolutions: 158 × 240 pixels | 837 × 1,274 pixels.
Original image (837 × 1,274 pixels, file size: 556 KB, MIME type: image/png)
Description: Front picture of a very early comptometer
Title: EarlyComptometerMachine
Credit: Own work
Author: Ezrdr
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
Image usage
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