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The 'Kostules' Rule
MANUFACTURING AND DISPENSING EQUIPMENT
rule
Lever Brothers
Europe: United Kingdom, England, London EC1
1930s?
ivorine
overall: 62 mm x 188 mm

Optician's rule, white plastic with apical curves, decentration scale, angle of crest projecting curved scale, centre of pupil scale. Promoting the Kostules Invisible Bifocal range of lenses.


2007.357

Gift of Mr Les Hubbard, 2007



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thumbnail The 'Kostules' Rule
Lever Brothers
1930s?
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