Polyhedral dial

Forged polyhedral dial with no measuable latitude. This brass polyhedral dial is set on a thick wooden hexagonal stand, which is scarred and chipped. Two turned brass pillars support a brass plate, on which is set the cube of the sundial which can swivel on the plate. A brass plaque on the base carries the words 'Horologio Universale ad ogni latitudine. Vincenzo Farina fece secondo le tavole del Can. P.G.PAOLO GALLVCCI l'anno 1765.' (Universal sundial for all latitudes. Made by Vincenzo Farina according to the tables of the Can. P.G. Paolo Gallucci, in 1765.)

All faces of the sundial except the underside are engraved. The top face is hinged and lifts up to reveal a compass. On the left face is a nocturnal with poor geometric decoration on the index arm and at the centre of the face. The back face carries a lunar volvelle and the right face is titled 'Cerchio delle ore dal levare e tramontare del Sole' (For finding the hours of sunrise and sunset). The inner top face features a compass set in a dial-plate. The wood used for the base of this instrument is very low quality and the cube dial is non-operational. It is purported to have been made according to the tables of Paolo Gallucci, a 16th century author on dialling.

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

Object Details

ID: AST0507
Collection: Astronomical and navigational instruments
Type: Polyhedral dial
Display location: Not on display
Creator: Gallucci, Paolo; Unknown Farina, Vincenzo
Date made: Early to mid 20th century
Credit: National Maritime Museum, Greenwich, London, Caird Collection
Measurements: Overall: 243 x 113 x 255 mm
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