Butterfield dial
Butterfield dial for latitudes 40-60° North. This dial comprises an octagonal dial-plate with four concentric hour scales and a compass set into the plate at the southern end. The hinged gnomon, adjustable for latitudes 40-60°, has a bird index to mark the latitude and folds flat when not in use. The compass has eight points marked by French initials and the needle is surmounted by a brass pivot. Magnetic variation is indicated by an arrow East of North. The reverse side of the dial-plate and the gnomon are decorated with an engraved shell pattern. Also on the reverse of the dial-plate and on the back of the compass is a table of latitudes for places in Europe, primarily French.
The dial has a wooden case and is signed 'Butterfield AParis' on the obverse side of the dial-plate. It is purported to have belonged to an officer of Nelson's flagship HMS 'Victory'.
The dial has a wooden case and is signed 'Butterfield AParis' on the obverse side of the dial-plate. It is purported to have belonged to an officer of Nelson's flagship HMS 'Victory'.
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Object Details
ID: | TOA0086 |
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Collection: | Astronomical and navigational instruments |
Type: | Butterfield dial |
Display location: | Not on display |
Creator: | Butterfield, Michael |
Date made: | 1675-1715 |
People: | Butterfield, Michael |
Credit: | National Maritime Museum, Greenwich, London, Malcolm Stewart Collection |
Measurements: | Overall: 70 x 61 x 11 mm |
Parts: | Butterfield dial |
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