How bicycles were made.... a looong time ago

We live in a time where so much information is readily available to us. With Google and youtube you can find or stumble into stuff.  This was one of such stuff I found.  An old video documentary about Raleigh bicycles by The British Council. It showed how Raleigh design and fabricated their "state of the art" - now old style bicycle. No carbon fibre and only steel was used. :) What I like very much was the process of manufacturing.  The bottom bracket is one cool process!