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Esdaile-Turville Equilibrium Test
ORTHOPTIC INSTRUMENTS
equilibrium test
London Optical Company
Europe: United Kingdom
1936
metal
2000.154
ORTHOPTIC INSTRUMENTS
equilibrium test
London Optical Company
Europe: United Kingdom
1936
metal
Equilibrium Test consisting of a septum supported on two black metal posts, adjustable for width. Attached to test-type card holder. Pupillary distance scale disc at end of septum marked 54-70mm.
2000.154
College Purchase, 2000