Ring sun-dial in brass

Made:
1736 in Europe
Ring sun-dial, brass, 2 1/8 (diameter) x 3/4-inches wide

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Ring sun-dial, brass, 2 1/8 (diameter) x 3/4-inches wide
Science Museum Group
© The Board of Trustees of the Science Museum

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.

Details

Category:
Time Measurement
Object Number:
1894-12
Materials:
brass (copper, zinc alloy)
Measurements:
overall: 19.05 mm 53.975 mm, .07kg
overall (ring sun-dial): 20 mm x 55 mm x 62 mm,
type:
ring altitude sundial
credit:
Mr. F. E. Whelan