Matthew Wisker - York. Georgian mahogany Stick Barometer. 
Classically elegant Georgian mahogany Stick Barometer; the break-arch pediment over engraved silvered brass register plate signed by the maker and bearing manually operated vernier slide. The trunk, of book-matched herringbone mahogany veneer, edge-moulded and with exposed cistern tube terminating behind hemispherical cover. Wisker was an accomplished optician-instrument-maker, working from premises in Spurriergate from 1777-1804. The business continued to thrive for 3 more generations.