Quoted from dmacy:Domestic on most pins of this era should be “usually” the two coin slots. Exports were 3 or 1. So most here in the US would prefer to have the two slot. But you can get the 2 slot front (3D printed however unless they’re being reproduced again) and convert a three slot to two on the front side.
Is this always the case? I have a friend who owns a wh20 he bought from a dentist who bought it NIB. On the inside of the cabinet it has the serial number and the title and then it says 3 slot. This game was sold in the USA and has the 3 slot coin door on it which is why I was inquiring. Wasnt sure if some of the 3 slot doors were maybe built to go overseas and didnt quite make it.