St. Gallen, Stiftsbibliothek, Cod. Sang. 646 : Chronicle of Konstanz by Gebhard Dacher

The oldest copy of the Chronicle of Konstanz by Gebhard Dacher, made between 1458 and 1472 by the author himself and illustrated with a series of colored pen sketches, among them the oldest known view of the city of Konstanz. Obtained by the Abbey Library of St. Gall in the 18th century, at the latest.