Jason Clarke Antiques has dated this piece to the 1860s.
The instrument is topped with a stylised carved C Scroll which meets another elongated outswept scroll descends down either side of the neck and framing a ten inch silvered thermometer with Fahrenheit and Reamur scales. The circular ten inch silvered dial below is scaled for 28 to 31 inches of barometric pressure around its full circumference and is engraved to Newton & Co, 3 Fleet Street near Temple Bar” to the centre. The readings are taken by an ornate blue steel pointing hand with similar brass set hand which is operated by a set dial below the dial.

The scrollwork continues with outswept hips culminating in a floral motif to the base.
A great example of a Victorian barometer executed by the hands of one of the leading makers of the period.
The Newton’s according to their late nineteenth century catalogues considered themselves to have had a long and distinguished history dating back to the start of the eighteenth century suggesting that the company founder was a cousin of Sir Isaac Newton. However, through the very long and arduous investigations by both John Millburn & Brian Gee, it is clear that although the family relationship is certainly a close one, the scientific instrument making business began somewhat later.

The origins of the Newton business can sensibly begin with Nathaniel Hill, a self-described “globe maker and engraver” who worked at The Sun & Globe on Chancery Lane from 1746 to 1764 and amongst a number of apprentices took on a Thomas Bateman. Bateman’s early working dates are unclear but he eventually succeeded his former master maintaining the same address and in turn took on a John Newton from Hitchin as his apprentice in 1774. By 1781 it seems that Bateman’s business had been taken over by Newton (who must have just finished his seven year apprenticeship term) and another more established engraver, William Palmer. Palmer himself had in 1770, apprenticed another future leading globe maker in John Cary but must have considered the partnership with the newly established Newton (and the goodwill of Bateman’s business) as a sensible business opportunity. The partnership however, was short lived and from 1783 John Newton according to trade cards was trading alone, presenting himself as successor to Mr T. Bateman.

From this point forward, the business became solely a Newton affair, John had a number of sons but his eldest William succeeded to the globe making business, and in circa 1818 it was renamed as J&W Newton.

It is interesting (and historically confusing) that the Newtons’ at this stage had also taken a keen interest in the new and growing business of patents. The family was intrinsically linked to this industry throughout the nineteenth century and William is recorded as being patent agent on numerous early applications. This side of the business is less relevant (although intrinsically linked as they traded from the same Chancery Lane address) to the scientific instrument making firm but is notable for the fact that William Newton is still considered one of the founding fathers of the Chartered Institute of Patent Agents.

To return to the scientific strand of the Newton family dynasty, William had two sons, William Edward and Alfred Vincent, the latter also becoming a patent agent whilst the former maintaining ties with both industries called for the name change to the more familiar Newton & Co. It seems that both of the family concerns were increasingly prosperous as by the time of The Great Exhibition, the decision seems to have been taken to maintain the patent agency at Chancery Lane with a new premises at 3 Fleet Street
Jason Clarke Antiques has dated this piece to the 1860s.
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