Vfrpilotpb,
The model helicopter has conventional swashplates and feathering (pitch) hinges. Their current method of steering is very close to that of the Kamans. Here's an excerpt from the e-mail accompanying the picture.
Helicopter seen in a fair in Switzerland sunday 7th of september. It has 5 hp, rigid rotors and it use both ciclic for roll, ciclic for fore and aft, opposite ciclic for yaw. I have spoken with its builders and they said that they used this control sistem to avoid the reversal yaw problem, they also told me that they thought to use difference in collective for roll, (in R.C. models it's easy to try different mix control by changing electronical parameters) but thay haven't tried yet because it works well as it is.