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Distal spectacles lens trial case
TRIAL CASES, FRAMES AND REFRACTOR HEADS
low vision trial case
Carl Zeiss (Jena)
Europe: Germany, Thüringen, Jena
1922
metal; glass; wood
overall (case): 74 mm x 364 mm x 275 mm
2013.606
TRIAL CASES, FRAMES AND REFRACTOR HEADS
low vision trial case
Carl Zeiss (Jena)
Europe: Germany, Thüringen, Jena
1922
metal; glass; wood
overall (case): 74 mm x 364 mm x 275 mm
Set of sixteen low vision telescopic units (trial lenses) ranging from -30D to +12D and twenty five spherical and forty six cylindrical eyepiece caps for Zeiss Distal Spectacles. Contained in hinged wooden case with silk lining and sliding metal catch. Also two unglazed caps, two sprung lens mounts for near vision conversion and an occluder cap.
2013.606
The Norman Bier Collection, transfer from City University, 2013