One of the big queries I'm still trying to answer is "Who was Giovanni Pirelli?". I know the Pirelli tyre company was founded by a Giovanni B.Pirelli way back, but I'm pretty sure there is no connection between the Pirelli Glass company and the rubber company.
It has been suggested that Giovanni Pirelli was George Dunlop's idea of a joke (George = Giovanni; Dunlop= Pirelli)? :24:
Or even that it was an alternate name that he used before he founded Pirelli Glass, so that he appeared to be Italian.
But maybe he was a real person. Does anybody know?