MusEYEum Online Catalogue

Welcome to the online catalogue of the British Optical Association Museum. Here you can search for both museum artifacts and archives. Data is transferred from our Collections Management System to this website on a regular basis.


Viewing Record 6 of 16
Previous Record  Next Record
Switch Views: Lightbox | Image List | List

crossed cylinder confirmation test
crossed cylinder
Europe: United Kingdom
mid 20th c.
metal; glass
overall: 152 x 41 mm; lens diameter: 35 mm

Crossed cylinder. White metal rim and brass handle with textured grip. Two round lenses with colour coded peripheral stickers (red = positive, black = negative).


Ex Keeler Collection

Related Links

Browse by