Ring sun-dial, brass, 2 1/8 (diameter) x 3/4-inches wide. Outside of ring is engraved with a table showing the days of the month in which the sun enters the corresponding sign of the zodiac. For use at latitude 51°30'. Two pin holes allow use in summer and winter. Made by 'S. P. F.', Europe, 1736.
- Time Measurement
- Object Number:
overall (ring sun-dial): 20 mm x 55 mm x 62 mm,
- ring altitude sundial
- furnishing and equipment
- measuring device - instrument
- Mr. F. E. Whelan
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