Accession No

1721

Brief Description

horizontal dial, Butterfield type, by Delure, 1700 (c)

Origin

France; Paris

Maker

Delure

Class

dials; horology

Earliest Date

1700

Latest Date

1700

Inscription Date

Material

metal; silver (?); glass; wood; hide (leather); cloth (velvet); metal (brass)

Dimensions

box length 80mm; breadth 77mm; thickness 17mm dial length 67mm; breadth 58mm; thickness 8mm (style down)

Special Collection

Holden-White collection

Provenance

On loan from The Fitzwilliam Museum, University of Cambridge. Donated by Charles Holden-White to the Fitzwilliam Museum. Holden-White collection.

Inscription

‘Delure AParis’ (signed on dial plate)

Description Notes

Silver; octagonal dial plate; standing on compass base and one turned foot; decoratively engraved at base of style and scrolls at front of compass box; 3 hour scales for ‘50’, ‘45’ and ‘40’o lat. calibrated IIII-XII-VIII by 1 to 15’, 4-12-8 by 1 to 30 and V-XII-VII by 1 to 30’; folding adjustable ‘bird’ style, decoratively engraved, calibrated 40-60 by 10 to 1o ; Inset compass (inserted with calibrations out of alignment by 180o) with 32 points, 16 names, fleur de lis north; verso of dial decoratively engraved style spring plate; list of towns and latitudes.
Red-leather-covered octagonal wooden box lined with white velvet; brass hook fastener (hook missing, not original).

Condition: fair (box good).

References

Events

Description
The Butterfield dial was named after the man who popularised this kind of sundial. His name was Michael Butterfield, and he was an instrument maker in Paris, though he originally came from England.

Butterfield dials are a type of horizontal dial, normally octagonal or oval in shape, and are quite small. They have several different hour scales marked out on them, each of which is used at a different latitude. However, the gnomon also needs to be adjusted for the latitude. Butterfield designed an elegant scale for the gnomon adjustment, in the form of a bird. The beak of the bird marked the place on the latitude scale of the gnomon, which was lifted up or down until it was at the correct latitude. A compass in the bottom of the dial was used to make sure that it was pointing in the right direction.

This kind of sundial was not very accurate, but they were made in very large numbers, so they were obviously very popular. Most of the existing ones came from France, where many different makers produced them.

FM:39837