Folding opera glass in leather case

Made:: 1786 in London

Combined pocket folding opera glass and magnifying glass with fob ring in red leather case, unsigned, London, England, hallmarked 1786. Consists of a double objective lens that hinges independently, together they act as an achromatic lens while the front biconvex lens can be used as a hand magnifier.

Details

Category:: Optics

Object Number:: 1943-191

Materials:: see part records for details

type:: telescope - galilean, telescope - terrestrial, telescope - refracting and instrument case

credit:: Stevenson, A.

Cite this page

Rights

We encourage the use and reuse of our collection data.

Data in the title, made, maker and details fields are released under Creative Commons Zero

Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.

Parts

Folding combined opera glass and magnifier

Combined pocket folding opera glass and magnifying glass with fob ring, unsigned, London, England, hallmarked 1786. Consists of a double objective lens that hinges independently, together they act as an achromatic lens while the front biconvex lens can be used as a hand magnifier.