Category: Ophthalmology
Estimated Date: 1920
Name: Pupil distance measure

Description: 7.25” rod, which is metal with a rule and a wooden handle. Suspended from the metal part are two lens each with cross hairs. One is fixed at the end and the other moves to allow measurement of pupil.

Reference 1: 31

Pocket Eye Set, Spud
Ophthalmoscope, Liebrichs
Pupil distance measure
Ophthalmoscope, Loring
Surgical Set, Ophthalmic