My best guess is that it's a 1957 Hofner President Electric. Everything matches. The triple-dot inlays are the same, the two buttons behind the control plate, the roundd-off fretboard edge with the large lip. That headstock was introduced in '57, and the oval control plate was ditched later that same year, so it'll have to be that vintage. The only thing I can't figure out is the pickups, because the Presidents I've seen has had slimmer ones. But guitars weren't very consistent back then, so they may have used some from another model.