He really should have remembered how to do it from the first time they were around!!
You find very often the figure of 300 millions cubes sold by the early 80s. I'm not sure how many of them remained unsolved - or have been solved by screw driver, when people found out how to do it
I guess most people at that time thought that there is a little trick and when they found out that there is no trick but some thinking required, they lost interest. And the hype was over
The gentleman probably thought 50 quids for that trick is a bargain.
I'm in my MID 40s and I could do it with my first cube in 1979! When I got my 3x3 again 2 years ago I still was able to do the first 2 layers and some of the top layer. Not bad for a 34 year gap!
So you are no twisty newcomer after all
This explains how you have come so far in a very short time. Where did you get it in 1979? I got mine from a colleague in Vienna with Hungarian roots. I think they were produced outside Hungary not earlier than 1980.
Jerry Slocum The Cube wrote:
It was now September 1979, and the Cube could occasionally be seen on Hungarian streets, trams and cafés.
You were around 11 years old then. Wow! I was 33 and my oldest daughter was some months. As time goes by ...