File:Gerhard Köppen.jpg

Summary
This is a photo of Gerhard Köppen. As the source of the image is unknown, its copyright status is very hard to verify. As such it is used on Wikipedia under fair-use guidelines. The use of this image is believed to be Fair Use in the article Gerhard Köppen as it is a photo depicting a famous individual, it was taken during World War 2 and is therefore old and it is difficult to establish current copyright.