Scientific Researches! - New Discoveries in Pneumaticks! - or, an Experimental Lecture on the Powers of Air Hannah Humphrey 1802
Silver one-minute tourbillon watch by Breguet et Fils, sold to the Princess de Valençay in 1812. Clockmakers 1812
Spring detent watch by John Arnold, used by Ruth Bellville and family to distribute GMT c.1834-1940 Clockmakers 1794
'Dr Syntax and his wife making an experiment in pneumatics', print, London, England, 1820 William Combe 1820