Only two Cooper T77-chassis were ever built. Chassis #1 raced by Jochen Rindt during 1965 F1-season, later converted to the puzzle car:
Here the history, copied from an internet-site:
Cooper T77 F1-1-65
Jochen Rindt's works Cooper T77 in F1 for 1965. Kept until Monza when Rindt moved to an older T73, having not scored a single point all season. The T77 was sold to Fritz Baumann (Uster, Switzerland) and modified by Alf Francis to take an ATS V8 sports car, increased from 2500cc to about 2700cc. Baumann won the opening round of the 1966 Swiss championship in the Cooper-ATS and it was loaned to Jo Bonnier for the French GP in July but it was so slow during practice that he did not race it. The Cooper was also loaned to Charles Vögele during 1967 for Silvio Moser to use at the Syracuse and British GPs. It was sold to Gildo de Guidi (Schaffhausen, Switzerland) for 1968 and again used in the Swiss championship. Near the end of the season de Guidi raced it at the Gargellen hillclimb in Austria and although he was classified third, it is reported that the car was very badly damaged at this event. The engine and suspension were still in Switzerland in the late 1990s but the chassis may have been scrapped. The car was later restored, and started to appear in historic events from 2012 onwards. In March 2017, Urs Eberhardt reports that the car will be racing in HGPCA events in 2017.
Driven by: Jochen Rindt, Bruce McLaren, Fritz Baumann, Jo Bonnier, Silvio Moser, Charles Vögele and Gildo De Guidi. First race: Race of Champions, 13 Mar 1965. Total of 20 recorded races.
