Butterfield dial

Butterfield dial for latitudes 40°-55° North. Standard three-scale dial (see related terms) except for the following details:-

The second scale is numbered 4-12, 1-8 and the third, [IV] V-XII, I-VII, [VIII]. The compass has an eight-point rose with the cardinal and quadrantal points named in French and intermediate points marked by lines. North is offset 15° West to allow for magnetic variation. The latitude scale on the gnomon is adjustable for latitudes 40°-55°. The compass base is engraved with acanthus at the centre, while the remainder of the base and the back of the dial-plate is filled with a table of latitudes in two columns consisting of towns and cities in Europe.
This is a simple but beautifully engraved Butterfield dial and is signed 'Macquart AParis' on the reverse side.

For more information regarding this dial please refer to the OUP & NMM catalogue, 'Sundials at Greenwich'.

Object Details

ID: AST0257
Collection: Astronomical and navigational instruments
Type: Butterfield dial
Display location: Not on display
Creator: Macquart
Date made: Early to mid 18th century
Credit: National Maritime Museum, Greenwich, London, Caird Collection
Measurements: Overall: 7.5 x 61 x 67.5 mm