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Title: Avo light meter model 3, made by Avo Ltd., Dover, England, p [Go to resource]
Description: Avo light meter model 3, made by Avo Ltd., Dover, England, patent number 640117, 0 to 500 and 0 to 2500 lux. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: exposure meter Temporal: 1970-1979 Source: Science Museum Identifier: 1997-793 Go to resource More Like this...
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