Catalogued
Lalanne abacus / geometric anamorphosis
- Made by
- Léon Lalanne
- Year
- 1843-1846
- Field
- Nomograms and computing charts
- Kind
- Computing chart
- Room
- Charts that compute — Placed by reading its description, not yet studied
13 other forms share this skeleton
Source
Lalanne 1846, Mémoire sur les tables graphiques et sur la géométrie anamorphique
Attribution checked against the source