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.
Rumpler C.IV. Rumpler IV Rumpler IV serial number of Georg Seibert and Max Psaar radduschspreewald de html also found on org RumplerC IV pdold Rumpler IV
Page 2023 Free-images.com. All images are Public Domain