Accession No

3679

Brief Description

spherometer, by J. Duboscq-Soleil, French, 1850 (c)

Origin

France; Paris

Maker

Duboscq-Soleil, J.

Class

physics (?); laboratory apparatus

Earliest Date

1850

Latest Date

1850

Inscription Date

Material

metal (brass, iron)

Dimensions

height 115mm; diameter 130mm

Special Collection

Provenance

Purchased from Tesseract, Hastings-on-Hudson, New York, USA; lot 19, no. 60, 1988.

Inscription

‘J. Duboscq
Soleil a Paris’ (on brass circle plate)

Description Notes

Brass instrument for measuring radii of curvature, comprising 3 points fixed to supporting legs and a central point moved by a micrometer screw, whose divided scale measures to 0.001 mm. Iron screw and point-legs.

Condition: good; complete.

References

Events