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Juler's Hand Projection Scotometer
OPTOMETRIC INSTRUMENTS
visual field test
Keeler
Europe: United Kingdom
20th c.
metal

Hand-held projection scotometer. Grey metal shaft and bulb unit. Rotatable disc containing seven apertures of varying diameters. Second disc containing clear apertures and red/green filters. Removable projection lens unit. Brown handle with black plastic control switch.With black crackled enamel transformer, including indicator bulb, red/black flex and modern plug.


2001.312

Gift of Arthur C. Mawson in memory of H.P. Southcott, 2001


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