Thanks Nino for helping out here.. Not sure on numbers but will take a look to see what I can find.. the stepdown looks older than the power supply and a bit messy, I will take some pics to show you to see if you can identify anything there. Not sure on your reference to a domestic game, it has been imported from the USA and an old stepdown added in, coin slots look unused and no mechs but hard to tell where it's been. In very good condition if it has been on location as there is no cabinet scratches/graffiti except bumps on the back box trim and apron is spot on too.. Interesting machine.. Get back shortly with some pics..

:)