Cheiroscope, Maddox type, made by C. W. Dixey and Son Ltd., London, W1, England, 1920-1950. Cheiroscope, Maddox type 1920-1950
Twenty pairs of test objects in carton, for use with Maddox cheiroscope Twenty pairs of test objects in carton
Two identical Maddox cheiroscopes without lamp attachments, made by C.W. Dixey and Son Ltd., London, 1920-1950 Two identical Maddox cheiroscopes without lamp attachments
Cheiroscope, Maddox, steel and wood, electric light fitting, by C.W. Dixey and Son of London, 1950-1960 Cheiroscope, Maddox 1950-1960
Maddox cheiroscope by Clement Clarke Ltd., English Maddox cheiroscope by Clement Clarke Ltd., English
Cheiroscope, for training ocular muscles, steel and wood, probably British, 1930-1950 Cheiroscope, for training ocular muscles 1930-1950