@slimfern posted:Fascinating as you say El
There's not a lot of comedy in his list though is there...I'm not sure I'd want to watch any of them if they were found
I think the poster of the clip is a fan of the horror genre in particular from the silent era. So he's not so interested in comedies and there are a lot of ssilent comedies which have survived 
The only one of his ten I would want to see if it was found was his number 1, F W Murnau's "4 devils" (1928). It was a drama about 4 ophans who form a high wire act which they call "the four devils" so it's not a horror film. One of the orphans (and the lead) was played by Janet Gaynor.
Although a very different storyline, it was Murnau's next film after his "Sunrise" which also starred Janet Gaynor. "Sunrise" is regarded as the best silent film ever made and is the only film ever to be awarded, justly, the Oscar for best unique and artistic picture.
The producers, Fox, pulled it out of distribution and decided, against Murnau's wishes, to try to add a soundtrack (music, dialogue & sound effects).
It is possible that there is a copy of the film somewhere in the world (it was distibuted around Europe).
Murnau died in a car crash in 1931 only 42 