Ups! Did I say 30 (thirty?). I guess I was confusing this with the number of arms of these horns *
Of course these have been 15 only.
Anyway Here is a picture of another complete set I did for my friend *Langdon Badger of Australia. *Unfortunately Langdon is not a participant of this forum. Otherwise he could tell you about his very accurate Fokker D.VIII repro he is working on.
He is very busy with very detailed research and we have been discussing things for a long time. He kindly helped me some times and these horns I did in return for him and his project.
The three "complete" ones go for the rudder and elevator, the ones cut to half are not damaged *

. Fokker used to use these at the torque tube welded to at a certain angle to activate the ailerons. Therefore these have a larger bracket, too.
Enjoy!
Achim