wxat gp500 on Twitter: "Kent Andersson (Yamaha 250 #10), Chas Mortimer (Yamaha 250 #4), Jean Louis Guignabodet (Yamaha 250 #14) Montjuïc 1974 https://t.co/2OpcVtCNN6" / Twitter
1978 Grand Prix motorcycle racing season - Wikipedia
1984 SA GP 250 17 Jean-Louis Guignabodet Yamaha (Colin Watling Photographic) (128) [63837] - R0.00 : Motoprint, The home of quality historic motor sport photography