In reply to Jim Walton:
The British footage from that period which I remember included a sequence of Eric Jones and Ron Fawcett climbing a frozen waterfall somewhere in Switzerland.
Ron was using a pair of reverse-curved Clog axes (I forget the exact name of the model) and, whilst he was leading off on a fairly-sketchy section, Eric commented something like: 'keep climbing like that Ron, and you're going to die'!