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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
Diameter: 2
The Tidal Abacus
This beautiful instrument comes complete with wooden base and booklets on use and historical context
It draws on the intimate association with the rotation of the moon
Max Height: 4
Altitude Ring Dial - Miniature - Hanging Praxinoscope Diameter: 2Miniature sundial. Height sundial. From 16th 17th centuries. This dial is a solar altitude clock. It takes ts name because the parameter of its construction is based on the altitude of the Sun. The dial is composed of a circular band perforated by two offsetting symmetrical holes through which the sun rays pass and are projected as a small elongated spot of light on the hourly line etched on the interior of the dial. Crafted of brass comes complete
US$ 530.00
US$ 555.00
US$ 610.00