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Harman's Scotometer
OPTOMETRIC INSTRUMENTS
visual field test
Curry & Paxton Ltd
Europe: United Kingdom, England
c.1920
metal
overall: 104 x 52 mm

Colour test consisting of revolving black metal disk with a window through which is visible a series of varying-sized red and green squares. Metal loop handle.


2004.630

Gift of Mr Brian Mitchell, 2004



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