Just been transferring some of our family "archives" ie old 8mm film, from the VCR it was transferred to, to the computer, and came across a clip of a helicopter landing and taking off somewhere near Zermatt in the early 1950s (before I was born!) taken by my father on a ski-ing trip. It may or may not be of any interest, but at least it shows that attitudes to health and safety have changed somewhat!