Just bought " Enduro Classics " video from Duke out of England.
It has video of the 51/52/54 ISDE's.
Did you know that the Italians entered 12 Vespa's in the 51 ISDE and that 9 of them finished.
One of the special tests was at Monza and the Nortons were doing 100mph down the straights.
Not many helmets to be seen either.
Good fun this video.