Todd
Those are beautiful panels. You scored big time.
Check out this one, photo taken last summer at Tommy Bolak's private electromechancial museum in Farmington, NM, near Four Corners (UT,NM,AZ,CO). He bought out entire power houses from old mines and factories. Also, big transmitters (KOB's RCA 50E), and more. He has it rigged so that to turn on the lights in one of his many buildings, he uses a series of knife switches on one of these panels. Very impressive.
That I LIKE!!!
Wish I had that kind of space.