Harman's rule for measuring the occular base line

Made:: 1890-1940 in London

maker:: Theodore Hamblin Limited

Harman's rule for measuring the occular base line

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Harman's rule for measuring the occular base line
Science Museum Group
The Board of Trustees of the Science Museum

Harman's rule for measuring the occular base line, personal relic of the inventor(?) N. Bishop Harman, made by Theodore Hamblin Ltd., London, W1, England, 1890-1940, in leather case.

Details

Category:: Ophthalmology

Collection:: Sir Henry Wellcome's Museum Collection

Object Number:: A651886

Materials:: steel and case, leather

type:: rules

credit:: Harman, N.B.

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