26th Apr, 2018 12:00
Fine Photographica & Instruments of Science & Medicine
An English Compass Sundial Calendar Compendium
in the form of a complex perpetual calendar box, with two volvelles and revolving world times indicator, interior reveals a compass sundial gnomon set at approx 51.5 degrees, calendar covers years 1792 to 1832, to base an astronomical table and volvelle giving moon's age, phases and southing, case diameter 78mm
Sold for £480
Result plus buyers premium
in the form of a complex perpetual calendar box, with two volvelles and revolving world times indicator, interior reveals a compass sundial gnomon set at approx 51.5 degrees, calendar covers years 1792 to 1832, to base an astronomical table and volvelle giving moon's age, phases and southing, case diameter 78mm
Auction: Fine Photographica & Instruments of Science & Medicine, 26th Apr, 2018
