In A Nutshell Antiques and Interiors has dated this piece to the 1920s.
The aneroid barometer mechanism has 7 stacked vacuum capsules and utilises a gate suspension for improved sensitivity. The nib on the end of the long arm moves to record the pressure.
On the front of the case is a brass plaque which reads "Tranmere Sailing Club. Isle of Man Race 1927. 2nd Prize. Class 'A'. Won by 'Iomhar'". The case measures approximately 15" (38cm) wide by 9" (23cm) deep and 7" (18cm) tall. The drum has a diameter of 4" (10cm).
The barograph comes with about 50 charts, enough for about a year of recording. It has its original glass ink bottle recessed into the case which still has a bit of ink in. More charts and ink are readily available to buy online.
The clockwork mechanism is in good working order and the barograph appears to be working well. Of course it will however need setting up to the correct pressure when it arrives with you.
It is in excellent condition and has clearly been very well looked after. There is no major damage to report and the wood has a nice patina. There are some small minor marks on the case and some tarnishing on the brass but nothing detrimental and it displays beautifully. The nib is in good condition.
The best description comes from the photos so please look at them all carefully and if you have any questions at all please ask.
In A Nutshell Antiques and Interiors has dated this piece to the 1920s.
Selling good quality victorian, georgian and earlier furniture, accessories & decorative items. Ashburton, devon. LAPADA member
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Antique Mahogany Cased Drum Barograph with Charts
