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Mahogany cased Barograph by R. Stewart

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Mahogany cased Barograph by R. Stewart %%alt5%%
R. Stewart Mahogany-cased Barograph, having five glazed hinged lid, and a drawer below to house the charts. The mechanical eight-day movement is housed in the drum, fitted with a seven-day chart that 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 seven stacked vacuum capsules and utilizes a gate suspension, a refinement developed to improve sensitivity. The barograph has a thermometer and its original glass ink bottle recessed into the case.
Dimensions
Height 8.5 Inches
Width 14.5 Inches
Depth 9 Inches
Price
£975.00  UK
$1250.93  USA
1155.77  EU
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Category Antique Barometers and Barographs Date circa 1910   1910s Antiques Material Mahogany Origin English Item code as135a4741 Status For Sale

SellerShackladys Antiques

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Shackladys Antiques


Shackladys AntiquesBy appointment only
34 Spital Walk, Boughton
Chester
Cheshire
CH35DB

Tel : 01244 316394

Non UK callers : +44 1244 316394

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Mahogany cased Barograph by R. Stewart
 
as135a4741
 


 
 






 

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