German and Italian military sign
A negative worked over with tape to frame a sign in German and Italian that reads: Artistic Monument! Military use forbidden! The German Commander. According to Pennoyer's notes this was posted on an outer wall of the Cathedral of Pisa.
Albert Sheldon Pennoyer Collection, Department of Art and Archaeology, Princeton University
“German and Italian military sign,” Archaeological Archives, accessed October 24, 2021, https://vrc.princeton.edu/archives/items/show/22796.