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Bishop Harman's Diaphragm Test
ORTHOPTIC INSTRUMENTS
diaphragm test
Gowllands Ltd
Post 1931
metal
1999.3163
ORTHOPTIC INSTRUMENTS
diaphragm test
Gowllands Ltd
Post 1931
metal
Black metal rod with chrome chin rest and fold-out wooden handle with chrome collar stem. Adjustable aperture with ocular base line scale and ocular poise scale (both in mm). Fixation target holder.
1999.3163