EUCLID of Alexandria.

Das sibend, acht vnd neünt Buch, des hochberühmbten Mathematici Euclidis Megarensis.

Augsburg: Valentine Ottmar, 10 April 1555.

Very rare first appearance of any part of Euclid’s work in German, and one of the earliest vernacular editions (preceded only by Italian translations). This is a fine copy with a distinguished provenance.