A brass aneroid desk barometer with thermometer, Troughton and Simms, London, late 19th century The 4.25 inch circular silvered register with curved mercury tube Fahrenheit scale thermometer to the recessed centre inscribed Troughton & Simms, LONDON, within concentric scale calibrated for barometric inches calibrated 14 to 32 divided into fiftieths, set within brass drum case with bevelled front glass incorporating brass recording pointer and with suspension ring, 12cm (4.75ins) diameter; the whole supported on a foliate scroll carved oak cradle desk stand incorporating out swept knurled feet, 20cm (8ins) wide. The partnership between Edward Troughton and William Simms is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as formed in 1826 and operating primarily from addresses in Fleet Street, London. Edward died in 1835 followed by William in 1860; the business was subsequently continued by their successors until 1922 when the name was changed to Cooke, Troughton and Simms.
A brass aneroid desk barometer with thermometer, Troughton and Simms, London, late 19th century The 4.25 inch circular silvered register with curved mercury tube Fahrenheit scale thermometer to the recessed centre inscribed Troughton & Simms, LONDON, within concentric scale calibrated for barometric inches calibrated 14 to 32 divided into fiftieths, set within brass drum case with bevelled front glass incorporating brass recording pointer and with suspension ring, 12cm (4.75ins) diameter; the whole supported on a foliate scroll carved oak cradle desk stand incorporating out swept knurled feet, 20cm (8ins) wide. The partnership between Edward Troughton and William Simms is recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as formed in 1826 and operating primarily from addresses in Fleet Street, London. Edward died in 1835 followed by William in 1860; the business was subsequently continued by their successors until 1922 when the name was changed to Cooke, Troughton and Simms.
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