Slab and segment fused by heat

PART OF:: Display board of spectacles and lenses, c.1921

Slab and segment fused by great heat and carefully annealed. Stage in the manufacture of 'Kryptok' bi-focal spectacle lenses.

Details

Category:: Optics

Object Number:: 1921-323/58

Measurements:: overall: 45 mm

type:: ophthalmic lens

credit:: Dunscombe collection of spectacles

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.