Euclid and Herman - Ashmole MS 304, fol 2, Matthew Paris

Representation of euclid and an astronomer "hermanus", sometimes believed to be herman dalmatin (also called herman of carinthia), but more likely to be hermann of reichenau (hermannus contractur, hermann der lahme) according to http://www. Jstor. Org/stable/24395517 'two persons seated: "euclides", on the dexter side, uplifts a sphere with his right hand, and with his left holds a telescope, through which he is observing the stars; toward whom "hermannus", on the other side, holds forth a circular instrument hanging from his fingers, which is superscribed "astrolabium". ' (catalogue by w. H. Black, p. 214). Date: 13th century.