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.
Kaiserkanzel. Leonhard Tietz in Aachen aus dem Jahre Aachener Dom Inneres mit Kaiserkanzel Postkarte des Kaufhauses Leonhard Tietz in Aachen aus dem Jahre Scan by ACBahn PDold History of Aachen Cathedral Postcards of Aachen
Page 2023 Free-images.com. All images are Public Domain