Feb 15, 2025
A brass ring dial or mariner's sun clock, circa 1790
The universal ring dial could be used on land or at sea to obtain local solar time by knowing only the date and latitude without the use of a compass.
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seen from Singapore
seen from China
seen from Germany
seen from United States
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seen from China
seen from United States
seen from China
A brass ring dial or mariner's sun clock, circa 1790
The universal ring dial could be used on land or at sea to obtain local solar time by knowing only the date and latitude without the use of a compass.
▪︎ Ring dial, equinoctial.
Maker: Samuel Saunders (London, England)
Date: ca. 1760
Medium: Brass
A brass ring dial or mariner's sun clock. English circa 1790.
The universal ring dial could be used on land or at sea to obtain local solar time by knowing only the date and latitude without the use of a compass.