Clockwork Psychrometer/Hygrometer by Casella, London.
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Description
Clockwork Psychrometer/Hygrometer by Casella, London. For measuring the temperature and humidity levels. Clockwork motor can be heard running (last for around 10 minutes) but actual operation untested. Comes in fitted wooden box with copy of BSI test certificate dated 1980.
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Clockwork Psychrometer/Hygrometer by Casella, London.
Estimate £30 - £50
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Item located in London, CHISWICK, ukSee Policy for Shipping
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