No Ol' Boy, I don't believe this one has ever been posted by anyone before. And so, thank you for ever so much for doing this. I know I was quite entertained by it.

Btw John, I could be wrong here, but while it said this film was a "Victor Horsman Production"(according to what I could find over the Internet, Horsman being a successful English motorcycle racer of the 1920s and evidently later opening his own motorcycle dealership in Liverpool), I believe the gentleman hosting this film at the beginning and doing the voiceover throughout was not Victor Horsman but instead appears to be Triumph's own Edward Turner.
I believe this to be true because here's a picture of Mr. Turner...

And here's the best picture I could find of Mr. Horsman(in his younger days only, unfortunately)...

And, if you compare the two of them to the gentleman in the film, the gentleman in the film sure looks a lot more like the former than the latter...at least to me, anyway.
In any case, it would be interesting to get a definitive answer on this one way or the other, wouldn't you say?!