6th Nov, 2018 11:00
Maritime and Scientific Models, Instruments & Art ('Speedy')
203
[M] A RARE EARLY 18TH CENTURY BRASS DECLINATORY DIAL
A RARE EARLY 18TH CENTURY BRASS DECLINATORY DIAL
unsigned, with inverted Roman numeral chapter ring and gnomon slot -- 9½in. (24cm.) diameter
Originally attached to a quadrant-shaped board, a pinhole at the centre allowed the dial to be rotated to read solar time correctly, the gnomon was only added when the dial was in use.
Literature: British Sundial Society: Bulletin Vol 29 (IV) December 2017, p. 14, where this dial is discussed.
A similar example is located in the Harvard collection of Historic Scientific Instruments, item number 7483.
A RARE EARLY 18TH CENTURY BRASS DECLINATORY DIAL
unsigned, with inverted Roman numeral chapter ring and gnomon slot -- 9½in. (24cm.) diameter
Originally attached to a quadrant-shaped board, a pinhole at the centre allowed the dial to be rotated to read solar time correctly, the gnomon was only added when the dial was in use.
Literature: British Sundial Society: Bulletin Vol 29 (IV) December 2017, p. 14, where this dial is discussed.
A similar example is located in the Harvard collection of Historic Scientific Instruments, item number 7483.
Auction: Maritime and Scientific Models, Instruments & Art ('Speedy'), 6th Nov, 2018
Page turning catalogue here
Downloadable bid form here
Main View and Sale Venue:
25 Blythe Road
London, W14 0PD
Large Object View and Post-Sale Collection:
6 Imperial Studios
3-11 Imperial Road
London, SW6 2AG
Press enquiries: Suzanne Trisk press@charlesmillerltd.com
Viewing
Saturday, 3rd November
(12noon-5pm)
Sunday, 4th November
(12noon-5pm)
Monday, 5th November
(10am-5pm)
Tuesday, 6th November
(10am-11am - limited view only)
