They are mid 70's 3 way, made in the US of A. Walnut cabs, 12 " bass, 3 1/2 2" mid, 1 3/4 " tweeter and a bloody front port. All drivers foam surrounds are shagged.
Plans for these are
- throw everything away except the wooden cabs
insert doc modded 12" bass and visaton G25 tweeter
3.3uf series cap and padding resistor for tweeter
renovate cab exterior
Visaton have some nice drivers in their range such as THIS or THIS
Not exactly the same size as the originals but i doubt that matters.
I know there will be other issues to resolve like integrating the mid and series wiring.