Avo light meter model 3

Avo light meter model 3, made by Avo Ltd

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Avo light meter model 3, made by Avo Ltd
Science Museum Group
© The Board of Trustees of the Science Museum

Avo light meter model 3, made by Avo Ltd., Dover, England, patent number 640117, 0 to 500 and 0 to 2500 lux.

Details

Category:
Optics
Object Number:
1997-793
type:
exposure meter
credit:
AVO Limited