Crescent Dial and Calendar
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Gilt, brass, silver
Late 17th century, Germany
Morning hours appear on one crescent of this dial, afternoon hours on the other; the central bar indicates months. The crescent-shaped shadow-casting device, which projects from this bar, is missing. The angle of the upper piece can be adjusted to conform with any latitude shown on the small arced strip.
AMNH Hayden Planetarium Collection 5590