Mahogany cased barograph by R Fuess Berlin. The mechanical eight-day movement is housed in the drum, fitted with a seven-day chart which covers one full rotation of the drum. The ink trace, or barogram, on the recording paper, is a visual record of changes in pressure.
The aneroid barometer mechanism has twelve stacked vacuum capsules and utilises a gate suspension, a refinement developed to improve sensitivity. The barograph with hinged lid with a silvered carry handle.
Dimensions
Height 11 Inches
Width 15.5 Inches
Depth 7.5 Inches
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