It's time to share a few images; some of these have been seen elsewhere but most are unpublished. I started with a few images from an instamatic in the mid-70s and progressed to better equipment over time. Some of the results follow. Where I can I will advise of where and when but of course I invite forum member's comments if you have something to add!
Unidentified Chevron, Oran Park, 1979 on a mid-week practice. No-one else on the track, no one in the grandstand.