Oak cased barograph by Negretti & Zambra, London

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oak cased barograph and thermometer by Negretti & Zambra, having a hinged five-beveled glazed removable lid. 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. The barograph has a thermometer and glass ink bottle recessed into the case.
Dimensions
Height 8.5 Inches
Width 14.5 Inches
Depth 9 Inches

Price

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 The price has been listed in British Pounds.
Conversion rates as of 8/MAY/2024. Euro & Dollar prices will vary and should only be used as a guide.
Always confirm final price with dealer.  sold

 

Date circa 1890  Late Victorian Antiques Material Oak Origin English Maker Negretti & Zambra Item code as135a4653 Status Sold

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34 Spital Walk, Boughton
Chester
Cheshire
CH35DB

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Item Oak cased barograph by Negretti & Zambra, London

 

Item Code as135a4653

 

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