What does the black(?) 'ball'mean in front of the code 01 + 14 ???
I have also seen a simular sign on a photo of a JU-52 with the code 02 + 34... Who know's the answer?
I believe that the photo was taken in 1938-1939...
01 + might stands for Kampfgruppe z.b.V 1 (their code changed to 1 Z in 1940...) But my main interest is the meaning of what look like a black 'ball'.
Hope some one can help!