60 year old Full Size Meccano Block Setting Crane HUGE super model%21

This turned up in my friend's clock shop in Quarry road, Tunbridge Wells. He asked me to take a look and after a little lubrication and checking the motor after, I improvised a power source from a transformer, and set about learning how it all worked. A great experience, I was gobsmacked.

I'm guessing it's about 60 years old, older or newer, and was made from a set no. 10

It was part of the clock shop's 2015 christmas display!