Title
anisotropic glass specimens
Identifier
ABDNP:200630a
Description
Specimens for observing strain-induced anistropy in polarised llight. 3 wooden frames each inset with a anisotropic glass specimen of different shape; flower, circular, octagonal shapes.
Date
1840-1855
Format
height 16mm, length 141mm, width 49mm
Prisms diam. 35mm
Prisms diam. 35mm
wood, glass
Coverage
5 Charing Cross, London, England
Creator
Watkins & Hill Opticians (Francis Watkins & William Hill)