AN EDWARDIAN MAHOGANY CASED BAROGRAPHSHORT AND MASON, LONDON, EARLY 20th CENTURYThe mechanism with seven-segment aneroid chamber connected via a lacquered brass armature to an inked styl for recording the change in barometric pressure on a clockwork-driven paper scale lined drum, with ivorine trade liable inscribed SHORT & MASON, LONDON applied between the drum and brass baseplate, the case with bevel-glazed five glass cover incorporating projection top mouldings and square section columns to corners over cavetto moulded base fitted with chart drawer to apron over bracket feet.23.5cm (9.25ins) high, 38cm (15ins) wide, 23.5cm (9.25ins) deep.The firm of Short and Mason are recorded in Banfield, Edwin BAROMETER MAKERS & RETAILERS 1660-1900 as operating from 62 Hatton Garden, London 1873-75 then 40 Hatton Garden from 1876. They were leading makers of barographs and aneroid barometers well into the 20th century later merging with Taylor Instruments in 1969.