This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Euclid and Herman Dalmatin Ashmole MS fol . Euclid and the thcentury astronomer Herman Dalmatin also called Herman of Carinthia 'Two persons seated Euclides on the dexter side uplifts sphere with his right hand and with his left holds telescope through which he is observing the stars toward whom Hermannus on the other side holds