When did you first use a fax machine?

I remember in 1977 using a fax machine while working in a Government dept. Then in 78 I went to work in industry for a couple of years. The company I worked for were a big US company and I worked in their London office. They were still using telex and when I told them how much quicker and easier it would be if they had a fax they looked at me as if I was nuts. They had never heard of it.

If I remember rightly it was some years later before fax machines took over from telex.

Does anyone else remember when they first came across a fax machine?