A Chromed Formula 1 Ford V8 2993cc Piston, with official letter from Cosworth Engineering Ltd, Race
A Chromed Formula 1 Ford V8 2993cc Piston, with official letter from Cosworth Engineering Ltd, Race Date 3rd March 1979, specifying piston no.1, this is to verify that the enclosed piston was taken from the Formula 1 DFV engine prepared by Cosworth Engineering Ltd. It is one of eight used by Didier Pironi driving a Tyrrell 009 car in practise for the 1979 South African Grand Prix