A Pyrometer by Watkins and Hill
circa 1840, brass, with silvered scale and indicator arm with vernier scale, engraved 'Watkins and Hill Charing Cross London', in fitted mahogany case, with trade label
Sold for £1,200
Result plus buyers premium
circa 1840, brass, with silvered scale and indicator arm with vernier scale, engraved 'Watkins and Hill Charing Cross London', in fitted mahogany case, with trade label