A weight-driven wall regulator of related design by Frodsham, No. 983 (see Roberts, op. cit., p. 149) was sold these rooms, 10 June 1998, lot 37 (£78,500). Another spring-powered example, with very similar case design, No. 1720, was sold these rooms, from the Richard Ormonde Shuttleworth Charitable Trust, 10 June 1993, lot 290 (£69,700).
Charles Frodsham (1810-1871) was one of the finest clock and watch makers of the 19th Century. His business was particularly renowned for its precision timekeepers, such as chronometers and regulators, but it was also responsible for some of the best carriage clocks made during the Victorian period. The present regulator, with its richly embellished case and elegant proportions, is a particularly fine example of the company's work. Frodsham produced fewer - and arguably more attractive - regulators than their rivals, Dent. Derek Roberts (op. cit, p. 149) suggests they made two types: floor-standing clocks for observatory use and wall clocks, mostly spring-driven, for domestic use. The present clock would have been one of the very best examples of the latter type.