1st Nov, 2018 12:00

Fine Photographica & Instruments of Science & Medicine

 
  Lot 47
 

An English Equinoctial Ring Dial

sundial having meridian ring with latitude scale 0 -82 divided to one degree, reverse with scale for solar altitude divided to one degree, equinoctial ring unusual having hour scale only III -XII ans I-IX, divided to 15 minutes on both obverse and inner rim, bridge date scale gives Spring solstice at around 10th March (Julian calendar), other side of bridge with declination scale only, made before 1752, diameter 10.1cm

 
sundial having meridian ring with latitude scale 0 -82 divided to one degree, reverse with scale for solar altitude divided to one degree, equinoctial ring unusual having hour scale only III -XII ans I-IX, divided to 15 minutes on both obverse and inner rim, bridge date scale gives Spring solstice at around 10th March (Julian calendar), other side of bridge with declination scale only, made before 1752, diameter 10.1cm

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