Philco 123...congrats on the find. I added some photos of the knobs and the cover strip from mine. The knobs are clear (yellowed) with gold back-paint and are 1 1/16" wide with knurls on the sides and 1 1/4" long with a D shaft. The cover is 12 3/8" long, 3/4" wide with an opening at one end for a clear plastic UHF channel viewer and cutouts for six knobs.
There is also a thin steel stiffener that goes behind the cover strip to keep you from flattening the aluminum cover strip when you screw it down. If you are gentle, you could live without it.
Also pictured is the Philco theory/service book for the set by Donald Fink. Strangely it does not have one picture of the set. Just a few chassis views and one artists sketch of the cover strip.
Here is a search page for the book from used book dealers;
http://www.abebooks.com/servlet/Sear...vision&x=0&y=0