1975 Ferrari

Hi all,
I am searching for pictures about Ferrari 312T engine and rear roll bar shape (because of the latter were used two different types from a race but don't know which...) in these GPs:

Sweden
Holland
France
UK
Germany
Austria
Italy

Could anyone help? Even only a Zandvoort or Monza pic would be very useful,
thanks in advance,
Gabriele

Oh, forgot:
If someone would send me any picture, here's my mail address
gablet@tiscali.it
Thanks!