I have come across this overlay conversion called "The Professional". IPDB shows they made 5 different versions of it. It was an overlay, along with a different backl glass, etc. Personally, I think you ruined a good game using this, as it looks horrible.
My question is, was this used in some sort of exhibition or tournament only, or were these available to the public for general conversions ?
2nd question - is it worth anything ? I only found one that had been sold on Ebay, and it was very cheap.
Thanks.