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Brass telescopic alidade.
The alidade in an instrument used to calculate the angle of a visible point viewed through the objective, respect a circular table, commonly an astrolabe or a planet chart. It was substituted by the sextant, of better accuracy in the calculations than the alidade.

SIZES
Height: 25 cm.
Base (Diam.): 10 cm.

AVAILABLE IN STOCK

DELIVERY TIME 24/48 HOURS