Round 17 - United States Grand Prix
Circuit of the Americas, Austin, Texas, United States of America.
Thursday 19 October 2017.
Keith Frieser (CAN) 1973 Shadow DN1 with Charles Nearburg (USA) 1980 Williams FW07B, Brad Hoyt (USA) 1975 Hill GH1 and Doug Mockett (USA) 1978 Wolf WR6.
World Copyright: Charles Coates/LAT Images
ref: Digital Image DJ5R2338