Finally got this one cleaned up and back together. It's considered a 'counter top' model, but I think that's really pushing it.
Pretty neat game overall, and Keeney made a big deal about bringing the balls back up to 'playing level' ("the only CORRECT way", or so they claimed).
You have to pull the coin slide out in order to place the nickel in the slide, then push it all the way in to reset the playfield. The balls drop through to a gathering spot underneath. Then you have to pull the coin slide out again, and a little elevator mechanism raises the balls to a trough that feeds the shooter, then you let the coin slide back in. (The coin slide is attached to a large spring, which keeps the slide pulled in.)
To remove the playfield, you have to remove this two wedge-shaped shim blocks underneath each side of the playfield. The playfield then lowers, and can be pulled out through the back of the cabinet. The plunger is attached to the playfield, so come out with it.
10 balls for a nickel, and if you get a ball in its corresponding colored cup, that counts double. There are five different colors, so two balls per color. I'm pretty sure they used colored glass marbles originally, and so that's what I used. I went with cat's eyes, to give it some extra bling, in keeping with the spirit of the game. They're a 3/4", which I'm convinced is the correct size. (3/4" is considered a standard 'shooter' marble, and would have been readily available in 1932.)
I did add a small spring to the plunger on the outside of the cabinet. Originally these didn't have one (they hadn't figured that out yet in early 1932), so the plunger just whacks the casting without it. I didn't want to risk the knob cracking, and the sound it makes without it horrible, so it's one mod I did make. It plunges so much better with it.
Anyway, this was the game I found a neat Buffalo nickel hidden away in, and the game is now ready to take more nickels.