Sundial by Robert Henri, Marseilles, ca. 1641 - ca. 1674 — view 1 of 4
View 1 of 4 · Image: © Victoria and Albert Museum, London · original image source

Instruments · Sundial

Sundial by Robert Henri, Marseilles, ca. 1641 - ca. 1674

DocumentedDocumented from the holding institution's catalogue record.
Maker / attribution
Robert Henri (sculptor)
Date
ca. 1641 - ca. 1674
Country of origin
Unrecorded in source
Place
Marseilles
Object type
Sundial
Materials / technique
ivory, partly painted, engraved in black, with steel fittings and coloured paper
Dimensions
Depth: 10.2 cm; Width: 8.5 cm; Height: 1 cm (when closed)
Accession / object no.
A.53-1923
Credit line
Given by Mrs Ellen Hearn, Villa St Louis, Menton in 1923; this and other objects presented at the same time were labelled as the Alfred Williams Hearn gift.

View the source record ↗

Record summary

Held and catalogued by Victoria and Albert Museum, London (object number A.53-1923), this is a sundial by Robert Henri, made in Marseilles, dated ca. 1641 - ca. 1674. The Atlas places it in the Early Modern Horology period (1600 – 1750) of its Instruments collection. Materials and techniques recorded by the source: ivory, partly painted, engraved in black, with steel fittings and coloured paper. Recorded dimensions: Depth: 10.2 cm; Width: 8.5 cm; Height: 1 cm (when closed). The record is illustrated with 4 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

V&A — Summary

This sundial and compass, in ivory with steel fittings, was made in about 1641-74 in Marseilles in France by Henri Robert. The exterior of this dial is engraved with a dial and calendar, inscribed with the words 'FAIT PAR HENRI ROBERT MARSEILLE' and on the front are the arms of the Marquis de Montigny, who was governor of the castle of Dieppe from 1641 to 1674. Ickowicz has commented on the puzzling fact that this dial is in the style of those made in Dieppe, and yet is signed by an artist working in Marseilles. He notes however a letter of 22 January 1645 from Louis XIV to Montigny ordering him to assist sailors travelling to Provence in order to arm 12 vessels, implying there were trade contacts between Dieppe and the South of France. Nothing more is known of the artist Henri Robert, other that he was active in Marseille in about 1650. Sundials and compasses were portable and essential for accurate time-keeping, and would have beed used by merchants, sea captains, travellers, and indeed anyone who wished to know the time, in the days before accurate pocket watches or of course wrist watches. They relied on measuring the sun’s changing direction in the sky, indicating the hour of the day through the angle of the shadow cast by the gnomon, which was the string in the hinged portable sundials. In order to work correctly the direction dials das to be properly aligned, and for this reason such portaqble sundials needed to incorporate magnetic compasses. Ivory was a suitable material for a number of reasons: it was not heavy, did not warp as easily as wood, and its light colour and realtive softness meant that it was easy to inscribe. Such objects were produced from the fifteenth century up to the early twentieth.

V&A — Physical description

Folding compass and dial; the exterior is engraved with a dial and calendar, inscribed the words "FAIT PAR HENRI ROBERT MARSEILLE." The interior is fitted with a steel dial and calendar with circular pointer and a compass, with glass and needle complete, at the back of which is a table of latitutes in coloured paper; on the front the arms of the Marquis de Montigny.

V&A — Object history

Given by Mrs Ellen Hearn, in 1923; This and other objects presented at the same time were labelled as the Alfred Williams Hearn gift.

Inscriptions & marks

'FAIT PAR HENRI ROBERT MARSEILLE'

Historical context

Early Modern Horology (1600 – 1750)

Huygens' pendulum and balance spring transform accuracy; English makers develop the anchor and deadbeat escapements.

Pocket sundials, Butterfield dials and sandglasses remained essential companions to imperfect clocks; navigators used sandglasses and the log line; observatories began to combine telescopes with pendulum clocks.

Read the period in the timelineMore instruments from this periodEarlier: Renaissance Horology

Atlas type guide

Sundials and solar time-finders

A sundial tells time from the position of a shadow cast by a gnomon or style. Because the sun's apparent motion depends on latitude, every fixed dial is laid out for a particular latitude, and portable dials either carry a latitude scale or are made for one region. Sundials show local apparent solar time, which drifts against mean (clock) time by up to about sixteen minutes over the year — the equation of time.

Portable dials were the pocket instruments of the sixteenth to eighteenth centuries. Nuremberg and Augsburg workshops produced folding ivory diptych dials with inset compasses; English and French makers sold brass horizontal dials, ring dials and the Butterfield type; Japanese and Chinese makers had their own traditions of compass dials. After mechanical watches became reliable, dials remained in use for setting them, and nineteenth-century heliochronometers were built to correct directly for the equation of time.

What to look for

  • The latitude engraved on the dial plate or a latitude arc on the gnomon — it shows where the dial was meant to be used.
  • The type of hour lines: equal (equinoctial) hours, Italian or Babylonian hours counted from sunset or sunrise, or unequal temporal hours on early and Islamic instruments.
  • An inset magnetic compass and whether a magnetic-declination mark is drawn on its card — a useful dating clue because declination changes over time.
  • Maker's signatures and town marks: Nuremberg compass-makers (Kompassmacher) often struck a personal mark and the town's punch.
  • Additional scales such as lunar volvelles, wind roses, perpetual calendars or lists of cities with their latitudes.

Dating clues

  • Ivory diptych dials are characteristic of Nuremberg between about 1500 and 1700.
  • Butterfield-type dials with a bird-shaped adjustable gnomon point to Paris workshops from the late seventeenth century onward.
  • Equation-of-time tables engraved on the plate became common after the mid-seventeenth century, once pendulum clocks made the difference between solar and mean time obvious.

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:The history timeline

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