Derck's circular gauge dial
- Made:
- 1920-1925 in Indianapolis
This image is released under a CC BY-NC-SA 4.0
Licence
License this image for commercial use at Science and Society Picture Library
LicenseDerck's circular gauge dial
Science Museum Group
© The Board of Trustees of the Science Museum
Derck's circular gauge dial, a ready reckoning calculator for pipes, drills and machine tools. Copyrighted by James Derck, c1925.
Details
- Category:
- Mathematics
- Object Number:
- 1998-869
- Materials:
- cardboard
- Measurements:
-
2.54 x 127 mm
- credit:
- Tesseract
