Photographs of triangles wanted for a book.

[Pimpf359]

Hello collector friends. We are still looking for some triangles in pictorial form for our book we are currently working on. It would be great if someone could help us further. We are still looking for the following triangle.

RJF
RJF Stabsmusikzug
RJF Stabswache Berlin and München
Obergebiets Triangle West, Süd, Nord, Ost
Rundfunkspielschar Kurzwellensender
Rundfunkspielschar Deutschlandsender
Rundfunk Funktechn. Bereitschaft

We would be very happy about every picture.