PHOTO HSCC SILVERSTONE 19.10.13 GREG THORNTON'S NEW MATHWALL ENGINE IN HIS F50
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PHOTO HSCC SILVERSTONE 19.10.13 GREG THORNTON'S NEW MATHWALL ENGINE IN HIS F5000 CHEVRON B24 COULD NOT BE COAXED INTO LIFE SO HE ROLLED OUT HIS F1 MARCH 761 IN RONNIE PETERSON'S COLOURS INSTEAD. PHOTO PAPER THICKNESS NORMAL PHOTOGRAPH THICKNESS.