The front came off easily with two screws.
Here's the crack in the bottom of that case. Maybe some superglue
This appears to be version "A"
The speaker is pretty trashed
I bet someone stuck a screwdriver through the speaker grill
Looks to be all original.
I slowly powered it up with a dim bulb, variac and isolation transformer. The tubes do all lite up, no smoke, no pops but only a hum from the speaker and no HV. Oh well, I'll get it up on the workbench someday.