I miss mine too, it was mylared but way back then there wasn't an internet so I didn't trust trying to remove it without possibly screwing things up.

My Xenon is long long gone, might have been the first SS game I ever bought back in the 80s. Wish I'd kept it, mylared pf and everything. Anyway an interesting thing was when I got it, it had a little bluish-colored paper-backed rectangle of foil over the 'Bally' logo, purposely cut to cover it perfectly, stuck with tape behind it. And this was behind the outer clear glass so somebody would have had to go to a little trouble to put it there (or remove it, which I did). Only thing I could think of is that it had been used in a TV show or movie or something and they had to cover it up like putting tape over the label of a beer can. But if that was it, why not just stick it on the outer glass? Any other ideas? I still wonder about it.

Looking at a screenshot from Graveyard Shift, it's not my Xenon cuz I can see the blurry red 'Bally'. Then again I took the piece of foil off so maybe it is.