Damn, that last board is a beautiful vintage Cherry board, a shame it's in such a bad condition.
Is there a G80-**** written somewhere? I don't think I've seen that model already, but it definitely looks like an IBM AT clone made by Cherry (with the help of Focus, apparently).
Reminds me Nuum's G80-0441, which is an IBM XT clone:
And stop putting all the pics in spoilers please.