1968 United States Grand Prix.: 1968 United States Grand Prix. Watkins Glen, New York, USA. 4-6 October 1968. Bobby Unser (BRM P138). Ref-68 USA 63. World Copyright - LAT Photographic
1968 United States Grand Prix.
Watkins Glen, New York, USA.
4-6 October 1968.
Bobby Unser (BRM P138).
Ref-68 USA 63.
World Copyright - LAT Photographic