Thanks for uploading this. My grandfather owned this machine when I was a little kid in the 80s. Eventually it got moved to our house in the 90s and one day I blew a fuse in my dad’s Cerwin Vega speakers when I was a teenager, blasting music. I went down to the pinball machine and found a spare inside and it saved my ass.
Looks like a real bomb there was no explanation of the scoring or rule set just that the horses advance im not a big Williams fan and that machine has got to be one of their biggest failures