I noticed you mentioned the signals being called Helios? Is this name of the manufacturer and have you got any pictures of these signals? It just interests me because we have a model made by Siemens called the Helios here in the UK (whic is also used in other countries like Bahrain).
It's a nice collection. I have to say, EU generic heads are so much smaller than ours, which can be advantagous when storing them.
