Colour comparator with variable apertures

Colour compariter (shutter device) by C.F. Palmer Ltd., London

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Colour compariter (shutter device) by C.F. Palmer Ltd., London
Science Museum Group
© The Board of Trustees of the Science Museum

Colour compariter (shutter device) by C.F. Palmer Ltd., London

Details

Category:
Psychology, Psychiatry & Anthropometry
Object Number:
1996-277/75
type:
colour comparitor