Tora Tora? Game Plan? Etched in copper on top of board 20-00047C 20-10051A Etched in copper on back of daughter board 20-00048C 20-10052A ROM text showed TORA TOR* * was A with bit 7 set 1980 GAME PLAN,INC and war stuff (PLANE, BOMB, SQUAD, etc) .u2 2716 handwritten sticker U-2 .u9 2716 handwritten sticker U-9 .u10 2716 handwritten sticker U-10 .u11 2716 handwritten sticker U-11 open 24 pin socket @ U1 and U3 open 40 pin socket @ U42 Main board crystal with 5 185 on the top 5280 x8 socketed ds8833 x2 socketed ds8t28 x2 Daughter board open 40 pin socket @ U3 @ U2 76477 X2 Mame 0.139 E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\unk1027\roms\unk1027.u2 unk1027.u2 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\unk1027\roms\unk1027.u9 unk1027.u9 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\unk1027\roms\unk1027.u10 unk1027.u10 NO MATCH E:\hardware\EETools\roms>e:\games\mame\mameui32\mameui32 -romident e:\hardware\eetools\roms\unk1027\roms\unk1027.u11 unk1027.u11 NO MATCH