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opticians rule
MANUFACTURING AND DISPENSING EQUIPMENT
rule
Combined Optical Industries Ltd
Europe: United Kingdom
Post 1908
ivorine
overall: 47 mm x 173 mm

Optician's rule in white 'ivorine' plastic, overprinted in black with imperial and metric scales. Company logo and lens axis chart on front. Apical grooves and end projection.


2017.22

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