A (relatively) modern barograph by Casella. 8 section bellows. Gluck 8 day clock to the drum....
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Barographs
Barographs Barographs, like Barometers are a scientific instrument. The purpose of both is to tell the changes in atmospheric pressure. Barographs record these changes on a paper chart, which is wrapped around a clockwork drum.
WILSON, WARDEN & CO, LONDON BAROGRAPH
A very good quality recording barograph by WILSON, WARDEN & CO, LONDON. Gluck clock, 7...
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