I was going through my capacitor collection to catalog and test it, and there were a few caps with logos I couldn't identify. The first is a black circle with white letters in it that appear to be "db". These caps are all AC safety caps and still sold widely today. Just search "safety capacitors" on eBay, and you'll find them. Second is a rectangular motor start cap. The logo is a large S with a stylized, block Y under it with the Y being composed of three narrow lines running in parallel. Third is the most interesting. It's a old tin can, and the logo consists of a rectangle with two characters in it. Right character appears to be an O. The left is like a cloud in that you can see what you want. It could be an N or a K, maybe an X. However, it could be a cartoon of a frog-footed walking person with their right hand raised. But what's that dangling between the legs? Fourth is a big, 25 mm ceramic, and the logo is a circle with a couple of legs sticking out and a D in the middle. Fifth is a ceramic, and the logo appears to be a stylized C with a stylized M to the right.
Yup, I've looked on-line a lot. Easy to find logos for semiconductors; caps are not easy.
BTW, is there any way to know the voltage rating of a ceramic if it's not printed on it? Perhaps, some combo of capacitance and diameter indicates voltage?
Mike in Calif