My 325's eBay ad from last year (
http://audiokarma.org/forums/attachm...6&d=1149990565) shows it with the badge missing. Fortunately the owner had saved it, but he didn't save the original screws. His story: too hard to adjust the vertical hold all the time with the badge in the way. I just have the badge leaning up in place in my final photo. Yesterday I removed one of the screws from the badge on my 333. It does look "custom". A decorative flattened head, just as you describe. My local hardware store didn't have any machine screws that size (very small-diameter threads). I went to Lowe's, they have it, but not in brass. Here's nearly the correct screw (thread coarseness, diameter, length, and metallic composition):
http://www.amazon.com/4-40-BRASS-ROU...8&s=industrial
The only flaw is the head is way too round. Not sure I want to buy 100 of them, an additional $6.50 S/H too, but if I do, there's plenty of spares to try bludgeoning a few of then flat and trying to replicate the correct screw head. Might be worth a shot. For now I bought a 12-count bag of the zinc version with philips-head styling from Lowe's for 79 cents. Dipping them in brown paint will probably be adequate for anything but a museum piece. I'll try it out and if I'm not happy, will try smashing the brass ones.
Ralph, thanks for the early-style knob. An equitable trade for your (new) late-style knob, and it's nice to know your Capehart 325 is nearly whole again.
I contacted the seller of the empty 326 cabinet currently on eBay, and asked about the front safety glass, screen mask, knobs, and brass badge. It didn't sound promising. It's priced ok at the opening bid of $125, if those items were still with the set. Probably find a CX-33 chassis for it someday later. As-is, missing everything, maybe 25 bucks, tops.
Pictures don't really do the craftsmanship of the cabinet work on these sets justice. I understand why the guy thinks it's worth $250, but it isn't.
On cleaning the safety glass, there shouldn't be any "dirt" between the paint and the glass, so just don't rub there. Windex the front side and carefully windex only the transparent part of the back side. No reason to clean the paint surface, even if it's a little dirty. Too big a risk of scratching off any paint, which would probably be irreparable.
My thoughts only. I'm sure there are other solutions.