Just to add whilst we are discussing the 1957 TT. I have the bound volumes of "The Motor Cycle" for 1957. They make fascinating reading. The coverage of the Golden Jubilee races is.....to say the least.....in depth.
So, as this was such a milestone in TT history, if anyone wants to know anything about the event, just ask.
I am currently laid up, recovering from a heart attack, so I would probably enjoy a little research....stop me getting bored.