I am trying to complete a collection of posters of races I have attended. The ones needed to complete the collection are as follows:
1970 Warwick Farm Tasman Series
1970 Riverside CanAm
1971 Questor Grand Prix (F1 vs. F5000)
1972 Road Atlanta CanAm
1978 Belgian Grand Prix
1994 Indy 500
Any leads would be appreciated.