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Cards for the Swann-Cole Comparator
ORTHOPTIC INSTRUMENTS
stereoscope card set
Raphael's Ltd
Europe: United Kingdom, England, London, EC1
1930s
card; cardboard
overall (each card): 76 mm x 174 mm

Incomplete set of orthoptic training cards (nine out of an original nineteen) specifically for use with the Swann-Cole Comparator, printed in black on white. Namely cards 5 (adapted by the user), 7, 8, 9, 10, 11 (9, 10 and 11 adapted by user to bear fusion image on reverse), 16 (Peckham's anisometropia figures), 17 (Volkman's grids) and 18 (Volkman's discs). Also a very small Snellen chart (120 x 46mm). Also an instruction leaflet 'Notes on the Swann-Cole Comparator'. Contained within dark brown paper-covered cardboard box with soft-hinged lid and printed white paper label.


2014.859

Gift of Mr Ronald Rabbetts FCOptom, 2014



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