Any Sulphide in glass other than transparent clear is going to fetch a good price, the same with any figures that are painted, even if the glass is transparent clear. There are also some rare figures, mostly busts of humans and a double or 2. Most of the double's are fakes though, you better know what you're looking at. The so called (California Sulphide's) had a lot of doubles that fooled a lot of collectors for a long time. Do a little googling you'll find them.