Defender Pinball Machine in flyer possibly found! Chicago area. cabinet and head stamped 3 digits (no X's) this serial is in the same area as a normal serial number of 6 digits like all other williams defender's documented.Could this mean 370 known defender machines were produced than 369? The insert door looks to be a prototype door and has penciled cross hair for sample relocation of the display driver board hardware. displays are normal 2player 7 digit and one credit match however have red inked matching numbers on labels attached to them. backglass and the cabinet screening look normal that said,there is no inspection tags on the under side of the playfield (there is always at least a white rectangular inspection tag and yellow Tested by tags, nothing on this one. boards have no serials or warranty labels. the top of the playfield is almost completely Mylar.BOMBER LANES is spelled out at the top of the lane guides as in the flyer and there is white three sentences of font shown in the flyer I plan to get photos when I go there again. Does anyone know what the white font says in the flyer shown?