Thats a good question, I'll look. Being that all Black Widows were converted Gravitar cabinets. (You can see the Gravitar art under the BW side art) I'm not sure what will match and what won't.
Anybody have more info on how that was done?
I think new boards replaced the original Gravitar boards, but it was my
understanding that the BW boards were just leftover Gravitar Boards
with BW Sticker over the top to disguise it.
