1st Nov, 2018 12:00
Fine Photographica & Instruments of Science & Medicine
An Ausburg Equinoctial Sundial by Johann Georg Vogler
circa 1750, German, brass octagonal base with decorative engraving, and inset compass, compass rose with magnetic variation arrow, compass base engraved 'Elev Pol, Lisbon 39 Rom 42 Veneo 45 Wien, Ausg 48', with initials 'I G V', latitude arc divided to two degrees, hour ring divided to half-hour, 5.3cm across dial plate
circa 1750, German, brass octagonal base with decorative engraving, and inset compass, compass rose with magnetic variation arrow, compass base engraved 'Elev Pol, Lisbon 39 Rom 42 Veneo 45 Wien, Ausg 48', with initials 'I G V', latitude arc divided to two degrees, hour ring divided to half-hour, 5.3cm across dial plate
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Auction: Fine Photographica & Instruments of Science & Medicine, 1st Nov, 2018
