Clocks · Longcase clock
Marquetry longcase clock by Henry Harper, London
- Maker / attribution
- Henry Harper (maker)
- Date
- c. 1705
- Historical period
- Early Modern Horology (1600 – 1750)
- Country of origin
- England
- Place
- London
- Object type
- Longcase clock
- Materials / technique
- marquetry
- Dimensions
- Height 200 cm
- Stock no.
- Product 1150
- Credit line
- Dealer listing, The Antique Clock Company (product 1150)
- Catalogue title (original)
- MARQUETRY LONGCASE CLOCK SIGNED HENRY HARPER OF LONDON (English)
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Record summary
Catalogued by The Antique Clock Company (dealer), Dorset (stock number Product 1150), this is a longcase clock by Henry Harper, made in London, England, dated c. 1705. The Atlas places it in the Early Modern Horology period (1600 – 1750) of its Clocks collection. Materials and techniques recorded by the source: marquetry. Recorded dimensions: Height 200 cm. The record is illustrated with 2 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 — The Antique Clock Company
Marquetry Longcase Clock by Henry Harper of London Early 18th century marquetry inlaid 8-day longcase clock by Henry Harper of London. A good quality early 11” square brass dial, 5 knopped pillar ‘8-day’ count wheel strike movement, typical London marquetry/walnut veneered case showing early features, of excellent colour and patination. The dial with finely matted centre, seconds and calendar with the makers name to chapter ring. A highly attractive and outstanding piece from the golden age of clock making. Height: 79″ or 200cm
Historical context
Early Modern Horology (1600 – 1750)
Huygens' pendulum and balance spring transform accuracy; English makers develop the anchor and deadbeat escapements.
Huygens's pendulum (1656–57) improved clock accuracy from about a quarter of an hour to under a minute a day. The anchor escapement (c. 1670) and the long seconds pendulum created the longcase clock; London makers such as Fromanteel, Knibb, Tompion and Quare led European clockmaking, and French makers created the Boulle pendule.
Read the period in the timelineMore clocks from this periodEarlier: Renaissance Horology
Atlas type guide
Longcase (tall-case or grandfather) clocks
The longcase clock was born from two seventeenth-century innovations: Christiaan Huygens's pendulum (1656–57) and the anchor escapement (c. 1670). A long seconds pendulum, nearly a metre long, swings with a small arc, and enclosing it together with the driving weights in a tall wooden case protected the mechanism and created a new piece of furniture. London makers such as Ahasuerus Fromanteel, Thomas Tompion and Joseph Knibb set the pattern.
By the eighteenth century longcase clocks were made throughout Britain, the Netherlands, Scandinavia (the Swedish Mora clock), France (the Comtoise from the Franche-Comté), Germany and colonial America. Eight-day movements with two weights became standard in better clocks; thirty-hour clocks with one weight and a rope or chain were cheaper alternatives.
What to look for
- Winding holes in the dial: two (eight-day, going and striking) or none (thirty-hour, pulled up by a chain).
- Brass dials with applied chapter rings (earlier) versus painted iron 'white' dials (after c. 1770 in Britain).
- Moon-phase arches, date apertures, seconds dials and maker's name on the dial.
- Case woods and style: ebonised, walnut marquetry, lacquer, oak or mahogany; regional styles from London, Lancashire, Scotland or America.
- Whether the movement and dial match the case — 'marriages' are common.
Dating clues
- Square brass dials suggest c. 1670–1720; arched brass dials c. 1715–1790.
- Painted (white) dials were made by Birmingham dial-makers from about 1772.
- Comtoise clocks with repoussé pendulums are mostly nineteenth century.
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:Anchor (recoil) escapementDeadbeat escapementAnchor escapement
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