A "non-green" Defender looking cpu board
Had williams warranty sticker on it (438684 printed on it)
8039 Stamped on board
5770-09471-X2 etched in copper


.0	82s141

MAME 0.124a
C:\Hardware>c:\hardware\dataio\roms\mame\mame -romident c:\hardware\dataio\roms\williams\roms\williams.0 
williams.0          NO MATCH