I am 100% sure it's the Italian version.
The coin door, the Hantarex monitor and the look and colors of the side art give it away.It's not very clear but it also seems to be missing the typical wood blocks on the top where those metal "lifting handles" are on the Japanese one (like Taito cabs).
The last and pretty clear indication is that the PCB lacks the Namco logo and the big voltage regulator on the right is a TO-3 type which was never used on the Midway or Namco boards AFAIK......this board looks like the one Muerto has in his Berolino Galaxian.
Indeed I think this may have been an early version, as you can see the marquee is also lacking the Bertolino texts that it normally has so that is pretty interesting. The color of the marquee could be another indication but it's impossible to tell from pictures.
Since the original board is still in there (and it doesn't look hacked (although it seems there are 3 RAMs missing on the far right edge) I guess they only replaced the bezel/CP......I bet it had the same fate as almost all those plexi only bezel/CP plates, damaged by abuse.
Anyway.......not worth 1800 euro by far
