Now for the cabinet. Luckily there wasn't much to do. Just some Weiman's furniture polish took care of the "colorfast Blond Korina" wood. Here's the original sales brochure:
http://www.tvhistory.tv/1951-Sentinel-Brochure.jpg
I found a date scribbled on the back that confirms it's from 1951.
Here's that stained speaker grille.
I used some detergent, stain remover and bleach to clean it. No more peace sign.
I hooked up the internal antenna and did a test with my agile modulator.
Not the best picture, but there's still some work left to do.