Williams Flash Pinball Machine Game Backglass. Good condition backglass for a Flash pinball machine. This is in good shape for the age, see pics. This one has some paint loss and a. The item "Williams Flash Pinball Machine Game Backglass" is in sale since Wednesday, May 6, 2020.This item is in the category "Collectibles\Arcade, Jukeboxes & Pinball\Pinball\Replacement Parts". The seller is "jkjeepers" and is located in Glenside, Pennsylvania. This item can be shipped worldwide.