Accession No

5342

Brief Description

colour wheel and chromatic circle of Forichon, by Radiguet et Massiot, French, late 19th Century

Origin

France; Paris; 13 et 15 Boulevard des Filles-du-Calvaire

Maker

Radiguet et Massiot

Class

physics; demonstration

Earliest Date

1875

Latest Date

1900

Inscription Date

Material

wood (pine); metal (brass, iron); paper

Dimensions

Width 163mm; length 166mm; height 73mm

Special Collection

Provenance

Purchased from David Coffeen, Tesseract, Box 151, Hastings-on-Hudson, New York 10706, USA on 14/09/1998. Purchased with 50% grant from the PRISM fund.

Inscription

on makers plaque
RADIGUET & MASSIOT
CONSTRUCTEURS
13 et 15 Bould. des Filles-du-Calvaire
PARIS

Description Notes

Colour Wheel and Chromatic Circle of Forichon. French late 19th century. Pine wood box with brass makers plaque on from side. Attached to lid with brass pins is the brass chromatic circle of Forichon. Scale is 0-250 in 10° steps. Circle is labelled with the colors Rouge ( above 0°) Jaune (above 50°) Vert (above 100°) Bleu (above 150°) and Violet (above 200°). The lid slides off to reveal a compartment containing six packets of coloured sectors in various sizes and a computational paper “Rapporteur Centesimal”. The base also slides away to reveal a compartment that contains the iron flywheel with table mount (clamp type mechanism).

References

Events