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Dr Emil Hegg's Stereoscopic Charts for Squinters
ORTHOPTIC INSTRUMENTS
stereoscope card set
A. Francke S.A.; Elliott Optical Co Ltd; Clement Clarke Ltd
Europe: Switzerland, Bern; Europe: United Kingdom, England, London, EC1
Early-Mid 20th c.
card; cardboard
overall: 176 mm x 90 mm x 20 mm
2003.486
ORTHOPTIC INSTRUMENTS
stereoscope card set
A. Francke S.A.; Elliott Optical Co Ltd; Clement Clarke Ltd
Europe: Switzerland, Bern; Europe: United Kingdom, England, London, EC1
Early-Mid 20th c.
card; cardboard
overall: 176 mm x 90 mm x 20 mm
Set of 68 black and white and colour stereoscopic charts, divided into 9 series. Includes geometric, pictorial and photographic examples of charts. Includes Schlechteres Auge test. Contained in cardboard box. Together with an English instruction leaflet published by Clement Clarke (6th Edition).
2003.486