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.
TB Wien. Trkenbelagerung Laufgrben vor Wien gegen Ravelin die Lbel und Burgbastei Kupferstich des kaiserlichen Hauptmanns und Ingenieurs Daniel Suttinger Jhd Daniel Suttinger PDArt Battle of Vienna Architectural isometries Old maps of Vienna Lbelbastei Burgbastei
Page 2023 Free-images.com. All images are Public Domain