Bennett-Casella visibility meter no.40

Made:: 1949 in London

maker:: Casella

Bennett-Casella visibility meter no.40, by Casella, England

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Bennett-Casella visibility meter no.40, by Casella, England
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Bennett-Casella visibility meter no.40, by Casella, England

This simple visibility meter, designed in about 1933, consist of an eyepiece into which can be switched a number of neutral density filters. It is an earlier version of Gold’s design.

Details

Category:: Meteorology

Object Number:: 1995-804

Materials:: metal, rubber and glass

Measurements:: overall: 24.8 cm

type:: visibilty meter

credit:: Meteorological Office, Berkshire

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Bennett-Casella visibility meter no.40

Details

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