Accession No

1832

Brief Description

spyglass or prospect glass, English, 1720 (c)

Origin

England

Maker

Class

optical

Earliest Date

1720

Latest Date

1720

Inscription Date

Material

wood (lignum vitae (?)); glass

Dimensions

length 65mm; max diameter 34mm

Special Collection

Heywood collection

Provenance

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

Inscription

Description Notes

Trumpet-shaped spyglass, turned wood (lignum vitae?). Eyepiece screw in, long thread. Eyestop in two parts, threaded joint. Screw-on object glass cover. Object glass and single eye lens.

Condition: good; complete.

References

Events