Ring-Dial-1
Ring-Dial-2
Ring-Dial-4
Ring-Dial-3
Nicholas Bion, Paris c1685
Universal equinoctial ring dial. An exceptional and rare example by the preiminant royal enigneer to King Louis XIV for mathematical and astronomical instruments. Acanthus patterns decorate the equatorial ring stops, bridge ends and supports. Latitudes range from the colonies in the West, European capitols, Constantinople and Siam. Museum quality.
3.75in diameter
$11,800
