Austin Harris

March 1923, Manville Trophy Trial

Rover

Registration number(s) OH 5075

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Autocar Glass Plate A1257

March 1923, Manville Trophy Trial

BSA

Registration number(s) R 8430

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Autocar Glass Plate A1256

March 1923, Manville Trophy Trial

Marseal

Registration number(s) HP 5071

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Autocar Glass Plate A1255

March 1923, Manville Trophy Trial

Riley

Registration number(s) HP 4687

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Autocar Glass Plate A1254

March 1923, Manville Trophy Trial

Mystery Car

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Autocar Glass Plate A1253