The Dumont logo on my RA-102 looks like the RA-113 logo, only slightly smaller. Here's the RA-102:
The RA-113 is about 5/16" wider:
Perhaps a decal maker could reduce the RA-113 image to make one the right size for the RA-102.
I originally thought the knob legends were tiny decals, but now I see that the letters are recessed. I think they stamped the legends into the knobs and then filled them with gold paint. The legends on this knob say TONE and ON-OFF:
If your knobs are stripped and the stampings aren't completely worn off, perhaps you could brush gold paint into the recesses and then wipe off the excess. That might work on some of my knobs, but on a couple of them, the letter recesses look worn away. A person with a steady hand and a tiny brush could touch those up freehand, but I suspect my fine motor skills aren't up to that task.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html