Now this is interesting! That model of node board (based on my extremely-not-an-expert analysis) seems to be a fairly common one, but I can't find other references to the "ITO-A" bit here. That, along with the date and company all matching up, definitely could be some evidence of the machine.
Anyone here know anything more specific about this stuff? I wonder if they'd have tried to work in any easter eggs and design jokes in the boards itself - like spirals in the circuits and such.