I am always on the lookout for frames for marmalades, brides baskets, pickle castors, etc. A lot of times they are chromium nickle, not even old silverplate. seldom, if ever, find silver. However, consider this:
A $10 marmalade frame, married to a nice colored glass victorian marmalade bowl ($50-70) can be put together and sold for $125-150, depending on how good the "marriage" looks. I have bought a $30 pickle castor jar and a frame for $50, and sold it for $150-300. I have even bought a pickle castor with a clear jar for $75 and replaced the jar with a colored jar. Brides basket frames are a bit more expensive, even silverplate. Old victorian ones usually go for $100-150, but marry a nice ornate bowl to it, and it will almost double in value. I don't have enough access to epergne flutes to try to assemble one that all horns match, so have never tried to do it. Whenever I can marry a piece of metal to a piece of glass (and the combination looks good together), it always increases the value over what I have in the individual parts. Sometimes they are too nice to sell, sometimes I let them go to a new home.
Mr. Vaseline Glass