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Chart No 8 - for a Turville Infinity Balance
illuminated test chart
Raphael's Ltd
Europe: United Kingdom, England, London
metal; plastic
overall: 333 mm x 305 mm

Accessory panel for a Turville Infinity Balance, comprising cream-painted metal panel on which are positioned two black dots and two black triangles. The left dot and triangle are adjustable laterally by a manual control. The right dot is adjustable laterally by means of manually-operated pneumatic trigger.


Gift of Mr John Dixon Salt FCOptom, 2016

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thumbnail Turville Infinity Balance and General Subjective Unit
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