Astronomical ring, also called universal equinoctial ring, m - Lot 152

Lot 152
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Estimation :
700 - 1000 EUR
Résultats sans frais
Résultat : 1 000EUR
Astronomical ring, also called universal equinoctial ring, m - Lot 152
Astronomical ring, also called universal equinoctial ring, made of brass, with a meridian and hour circle. The central pivoting blade has a light in which slides a slider that adjusts to a scale and is pierced by a small hole that serves as an eyecup. France, 17th century. Diameter : 7,5 cm.
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