I was looking at the images of the playfield you just posted, and I just noticed a mistake (I think) that Bally made with the playfield.
The blue inline drop targets have "1 BLUE BONUS ADV & 10,000", "2 BLUE BONUS ADV & 20,000", and "3 BLUE BONUS ADV & 30,000". I would have expected the green inline drop targets to have the corresponding labels ie. - "1 GREEN BONUS ADV & 10,000", "2 GREEN BONUS ADV & 20,000", and "3 GREEN BONUS ADV & 30,000".
Looking at my Fathom (original PF) the green inlines have "GREEN BONUS ADV & 10,000", "GREEN BONUS ADV & 20,000", and "3 GREEN BONUS ADV & 30,000". Seems Bally forgot to correctly label the 1st and 2nd green inline drop targets. I confirmed the 2nd green inline does award 2 green bonus advances and the 20,000 points.