Mineralogy: Unusual Polarizing Tongs

Description

Mineralogy: Unusual Polarizing Tongs
Pair of polarizing tongs some 6" long, unusual in that the polarizer is simply a small reflective glass plate (reflected light is plane polarized). I am not sure of the nature of the analyzer. This would normally be a polished plate of tourmaline but here it is a small plate of a purple colour. Whatever it is it works quite well and produces a good extinction.
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Postage within the U.K. included
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Antique English Mahogany Victorian Carved Wall Thermometer H HUGHES & SON LTD LONDON 1900
By Henry Hughes
For sale, a magnificent Victorian wall thermometer of very lovely proportions by Henry Hughes & Son of 59 Fenchurch Street, London.
Comprised of a classical s
tyle of wall thermometer, by t
he retailer Henry Hughes who came from a long line of London clockmakers but his scientific instrument making business was established in 1838. Noted for its life size wooden figure of a seaman with sextant displayed outside the front door, Hughes premises at Fenchurch Street (originally 120 but later renumbered to 59 in around 1859) was a popular destination for merchant and Royal Navy seaman alike and Hughes gained much business from the Admiralty in the nineteenth century due to the quality and precision of his instruments. The founder dies in 1879 leaving the business to his son Alexander and it was later incorporated as Henry Hughes & Son Ltd in 1903 running successfully until its premises were destroyed during the blitz in 1941