Don't think this has been posted on Pinside yet... but Ed Boon posted this on Facebook:
"Another "basement flood" find. In a previous life (before video games) I programmed pinball machines. Found this picture of a "white wood" of the last game I programmed called BLACK KNIGHT 2000. My pinball friends might notice the lights that spell out FLASH instead of BLACK. That's because the game was originally going to be a sequel to a classic game FLASH, but eventually was changed to a sequel to BLACK KNIGHT. Yes, that is a Polaroid, no digital cameras back then!"
Not sure if this link works but I'll give it a try:
I always thought those lightning inserts didn't look good on BK2K but they would have been perfect for Flash II 
Quakertown, PA
I wouldn't be surprised if this layout turns into Stern's Star Trek 
