Quoted from leckylove:If you want a new backglass mafair amusements has them
The Repro Gorgar backglasses Mayfair stocks are a different repro from to what other vendors are currently selling. I believe the latest repros are excellent, but I haven't personally seen one.
Mayfair's repros were done around 1996 I beleive. I have one, they are absolutely true to original & look amazing, I had it side by side with a NOS Gorgar glass & it was pretty much identical. I'm also assuming (as they were made years ago) that they were done the same way as originals in terms of being an actual etched mirror as opposed to how it's done today with silver paint for the mirroring. No issue with age as these glasses were well sealed.
You would not be dissapointed with the Mayfair glass, that's for sure.