Just picked this up locally from the original owner who was a past Bally employee. Upon closing the building the game was built in, according to him, it was the last separate head, cabinet, and playfield left to use to build a game. Himself and JP and a few others assembled the last TOM and serial number off the line!
Has proto sound board and all handwritten roms in the game.
Game was signed in house when it was finished by JP
Heres some pics for you guys.
Undecided on of its for sale or not