I have an awesome reproduction that was done a bunch of years ago by an Austrailian guy named Tom Kennedy. It is exactly like the original but is on plexi instead of glass. It has no flaws and was never installed in a game.
Pics can be seen here: https://www.flickr.com/photos/93172369@N04/sets/72157643606034953/
(all the other glasses shown are for sale as well)