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Galileo's Military Compass

This is a rare surviving example of Galileo Galilei's geometrical and military compass, a form of sector invented by Galileo in 1597. It was made by Galileo's personal instrument maker, Marc'Antonio Mazzoleni, who was installed at Galileo's house from 1598.

For a full description of the workings this instrument, visit the Museo Galileo, Florence, Italy.

CHSI Inv. Number DW0950
Date: circa 1604
Marc'Antonio Mazzoleni

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