Accession No

1796

Brief Description

lucernal microscope; made by W & S Jones; circa 1800

Origin

30 Holborn; London; England

Maker

W & S Jones

Class

microscopes

Earliest Date

1800

Latest Date

1800

Inscription Date

Material

metal (brass); wood (boxwood, other); glass

Dimensions

length of base 629mm; with eye guide 960mm

Special Collection

Heywood collection

Provenance

Purchased from the H.Heywood collection under estate duty exemption benefit with the assistance of a Science Museum grant-in-aid.

Inscription

‘W & S JONES
30 Holborn London’

Description Notes

Pyramidal shaped box mounted on two turned brass pillars on a wooden base; stained inlaid strips along the edges of the box and beading (added later) along the bottom two edges of the box; stand slides into a groove in the upper surface of the box; large condenser lens at the broad end of the body with brass cell in wooden mount which slides into place (ground glass plate not extant); brass tube screw fits to thread below condenser and carries screw fit eye guide; screw fit brass mount at narrow end of body for push fit objective; six objectives marked 1-6 and 3 larger aperture objectives; dove tailed shoe at end of stand carries ‘the slide mount’ slide mount on a raked column operated by a long handled key; (3 handles extant - one original but with no key and 2 reconstructions); spring slide carriage with racked horizontal motion moved by second key; slide arm carried two stage condensers shoe carrying slide mounts mounted on a long screw which travels full length of base of box; 1 boxwood slide with 3 oval objects; 16 4-object opaque object slides.

References

Events