mine said built june 9 - 1999. version 1.2 machine build number 50,010 (fifty thousand and ten)
But that dont make sense, so maybe its meant to be 5010 and someone from the factory put an extra 0 in the number.
I gotta say, i love this RFM. It is just the very pinnacle of where pinball really evolved into a new era, and i really think it was the right direction. Both the new Pin2000 and the traditional pinball could have lived side by side. Perhaps say a make of each design could have really worked.
Imagine, for example, having a traditional Star Trek Next Generation sitting next to a pin2000 Star Trek Next Gen. You could enjoy both the different technology's and still have the fun of both titles. If only STERN did a really cool Pin 2000 machine based on Twilight Zone, or Medi-Evil Madness etc etc.
Food for thought.