1960s Son of Garloo Wind Up Robot Monster Toy in great condition for age and as shown in the video works well, although the on/off switch on the back appears to be stuck and I have decided not try to free it to avoid causing any damage.  Toy is 6" tall and made from tin and plastic.
 
I have other toys & games available including tin plate clockwork items, Scalextric, Matchbox & Corgi cars, YoYos, Power Rangers and more.