Catalogued
Thacher's calculating instrument
- Made by
- Edwin Thacher
- Year
- 1881
- Field
- Nomograms and computing charts
- Kind
- Physical object
- Room
- Charts that compute — Placed by reading its description, not yet studied
7 other forms share this skeleton
Source
Cajori 1909, A History of the Logarithmic Slide Rule
Attribution checked against the source