That second picture to me is the most famous photograph in the history of motorcycling. It was on my wall as kid forever. That bloke (Rollie Free) all stripped down and lying on the bike doing a run at Bonneville was all the go and I still lie down on me bike, but with all the gear on. He done a 150mph, pass on the salt and put Vincent right on the map as the fastest motorcycle.
What they never told anyone was that the Vincent had been worked over by the factory by the best replacing the standard carbs, pistons, cams and a whole heap of other stuff, and then shipped from Pommy land to Bonneville.. Hmmmm, maybe Vincent should have told everyone that old Rollie was really a factory Indian rider as well