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:
Frschengraben Grundriss. Nrdlicher Frschengraben um links das Rennwegtor rechts das Augustinerbollwerk Zentralbibliothek Zrich upload Mai unknown upload by Adrian Michael PDold Graphische Sammlung der Zentralbibliothek Zrich Historical images of Frschengraben Zrich Old maps of Zrich Augustinertor Zrich in the s