Astronomical ring, also known as a universal equinoctial dia - Lot 99

Lot 99
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Estimation :
80 - 120 EUR
Astronomical ring, also known as a universal equinoctial dia - Lot 99
Astronomical ring, also known as a universal equinoctial dial, in engraved and chased brass, composed of two meridian and equatorial rings, engraved with Arabic numerals and the names of cities with their latitude, including London, Berlin, Washington, Los Angeles, Lisbon, Tokyo and Hong Kong. In the center, the suspension ring is engraved with foliage scrolls and the initials of each month of the year. Signed "H. M. K(ala). Sunwatchmakers A 8720 Knittelfeld". Austria, late 20th century D. 6.5 cm
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