Table:
text: Duke Dinsmore
Complete Formula One World Championship results
Complete Formula One World Championship results
Year_ Entrant Chassis Engine Points
1950 Brown Motors Kurtis Kraft 2000 Offenhauser L4 0
1951 Brown Motors Schroeder Offenhauser L4 0
1952 Vulcan Tool R Miller R Miller 0
1953 M.A. Walker Electric Kurtis Kraft Offenhauser L4 0
1954 Commercial Motor Freight Ewing Offenhauser L4 0
1956 Shannon`s Kurtis Kraft 500A Offenhauser L4 0

Question: Considering Duke Dinsmore, what is Brown Motors' best overall score with the Offenhauser L4 engine since 1950?