I've just come into possession of this:
I think it's from the 1970's, and it has one missing cone and one dead cone, which, given the 4ohm impedance and paltry 160w rating, I'm not surprised about. I'd like to fit some new speakers to it and give it a bit of a spruce up. I have heard it in action, years ago, and from what I could tell it sounded pretty reasonable, so if I can get it up and running again it might be fun. I have the mesh grille and all the fixings, but the one 15" speaker I have won't fit in the hole in the baffle, annoyingly. I'm not sure at present whether this is because the speaker's chassis is too big or the hole is undersized; I suspect some research may well be due.
If anyone has any info or insight into these cabs then I'm all ears.
Cheers,
JRK