Epact Scientific Instruments of Medieval and Renaissance Europe

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Theodolite
Unsigned
Late 16th century; Italian
Gilt brass; 170 mm diameter

This simple theodolite, which is kept in its leather case when not in use, is adjusted to the horizontal by means of a universal ball joint fixed on the bottom.

The outer scale of 360? has been re-numbered in half quadrants of 45?.

The central shadow square is inscribed 'Puncta versa' in both normal and mirror script.

British Museum, London
Registration no. MLA 1926, 10-16.7

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