Accession No

1884

Brief Description

contact goniometer, by Ferat, French, 1790 (c)

Origin

France; Paris

Maker

Ferat

Class

earth sciences; drawing

Earliest Date

1790

Latest Date

1790

Inscription Date

Material

metal (silver, steel); wood; cloth (velvet); fishskin

Dimensions

case length 109mm; breadth 47mm; thickness 17mm

Special Collection

Provenance

Purchased from Peter Delehar in 1974.

Inscription

‘Ferat Paris’

Description Notes

Silver; hinged semicircle graduated 10-180 by 10 to 1; silver index with knurled silver clamp; pair of blued steel index arms one with clamp the other fixed; shaped wooden case lined with red velvet and covered with green fish-skin.

References

Events