Portrait of Galileo, from Istoria e Dimostrazioni intorno alle Macchie Solari (History and Demonstration concerning Sunspots), Rome, 1613
The portrait first appeared in Galileo's book on the sunspots and was later reprinted. It shows him at the height of his reputation. On the frame he is referred to as a member of the Lincean Academy and philosopher and mathematician to the Grand Duke of Tuscany (Cosimo II de' Medici). The two cherubs above hold instruments used and perfected by Galileo for his studies and experiments: on the left, the military compass or sector; and on the right, the telescope.
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