This photograph, taken inside a Leyland engine factory in 1920, is a real blast from the past. It takes us back to the day when Britain still had a decent manufacturing industry of its own, to a time when men were proud to do manual labour for a living.
And it really was manual work too - with every engine been assembled by hand. Not only aren't there any robots, but I can't spot any protective eyewear, safety gloves or Eastern European workers!
I wonder whether any of these engines are still running today - it's certainly unlikely. More unlikely still is the possibility that one of these men is still alive. I guess the youngest worker would have been about 14 - making them 101 today.