It will not get cooler during a heat wave, but it is certainly a lot more bearable when you read the temperature of this thermometer.
This unique thermometer was made around 1915 by Maison Cartier. The rose quartz tablet with black enamelled bowl and rose-cut diamond detail, has a ruby cabochon and a diamond flower head on every corner. The golden and white enamel pieces rest on a rectangular rose quartz base and have a total height of 18.0 cm, and is signed by Cartier N.Y
This unique and expensive thermometer was estimated at GBP 18,000 – 20,000. It eventually sold for £ 22,500 on June 13, 2017 at Christie’s London.