Re: So my dad bought this random guitar..
The 60's Japanese guitars were branded by many names. Teisco should have a badge on the headstock and usually had unfinished multi ply necks.
To be honest it could be one of a dozen different manufacturers.
The neck plate looks like a Matsumoko possibly or a Hondo its really hard to tell.
The pick ups are single coil and great to record with they are very clean sounding.
Sorry I can't be of some help.Maybe when you get it take a lot of pics with it apart and maybe someone will know what it is.