Clocks · Wall clock
Wall clock by Alex Glass, London, c. 1790–1800
- Maker / attribution
- Alex Glass (maker)
- Date
- c. 1790–1800
- Historical period
- Precision & Scientific Horology (1750 – 1850)
- Country of origin
- England
- Place
- London
- Object type
- Wall clock
- Dimensions
- Height 52 cm
- Stock no.
- SKU 293
- Credit line
- Dealer listing, Howard Walwyn (SKU 293)
- Catalogue title (original)
- ALEX GLASS, LONDON. A fine silvered dial English wall clock (English)
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Record summary
Catalogued by Howard Walwyn Fine Antique Clocks (dealer), London (stock number SKU 293), this is a wall clock by Alex Glass, made in London, England, dated c. 1790–1800. The Atlas places it in the Precision & Scientific Horology period (1750 – 1850) of its Clocks collection. Recorded dimensions: Height 52 cm. The record is illustrated with 3 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Dealer description — Howard Walwyn
A fine George III period silvered dial English wall clock with wooden bezel, the fusee timepiece movement of 8-day duration. Date: circa 1790 – 1800 Height: 20 ½ in (52 cm) Overall diameter: 20 in (51 cm) HW5926
Historical context
Precision & Scientific Horology (1750 – 1850)
Harrison solves longitude; Mudge invents the lever; Breguet's Paris workshop defines the modern watch.
The age of the deadbeat escapement, compensated pendulums and observatory regulators. Domestic clocks spread through the middle classes: English longcase and bracket clocks, French gilt-bronze mantel clocks, Viennese Biedermeier wall clocks, Black Forest painted-shield clocks, and the first American shelf clocks.
Read the period in the timelineMore clocks from this periodEarlier: Early Modern Horology
Atlas type guide
Regulators, wall and Vienna clocks
A regulator is a precision pendulum clock used as a time standard in observatories, workshops and railway offices. Typical features are a deadbeat or Graham escapement, a temperature-compensated pendulum (mercury jar, gridiron or later invar), maintaining power and a regulator dial that separates hours, minutes and seconds. George Graham's deadbeat escapement (c. 1715) and his mercury pendulum, together with Harrison's gridiron, set the pattern for two centuries.
Wall clocks span a much wider range: the elegant Viennese Laterndluhr and Dachluhr of the Biedermeier period, the Dutch stoelklok and staartklok, English 'dial' clocks used in schools, offices and railway stations, and mass-produced spring and weight wall clocks from Germany (Gustav Becker, Junghans, Kienzle) and America.
What to look for
- Deadbeat escapement and compensated pendulum (gridiron rods, mercury jar or wood rod).
- A regulator dial with a large central minute hand and separate hour and seconds dials.
- Vienna regulators: glazed cases, slender pendulum, small weights, enamel two-piece dials.
- German factory trademarks stamped on the backplate (e.g. Gustav Becker anchor and crown, Junghans star).
Dating clues
- Graham-type deadbeat regulators: from c. 1720.
- Viennese Laterndluhr: c. 1800–1850.
- German factory 'Vienna-style' regulators: c. 1870–1930; Gustav Becker serial numbers allow close dating.
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
Read next:Deadbeat escapementAnchor (recoil) escapementGrasshopper escapement
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