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Title: Abney type colour photometer with rotating sector apparatus [Go to resource]
Description: Abney type colour photometer with rotating sector apparatus by Adam Hilger, London, 1888. commercial version of photometer used by Sir William de Wiveleslie Abney and Major-General E. R. Festing in their researches. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1888 Source: Science Museum Creator: Adam Hilger Identifier: 1888-176 Go to resource More Like this...
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