EG Webster Sugar and Creamer set

This is a set of cream and sugar bowls. After doing some investigating, it appears as if they are from the late 1800s made from EG Webster and Son. The brass is so elegantly showing itself through the face of the silver plating. The condition of this set is very good with the exception of the fading of the silver. It looks as if they were hand made because of the hammer marks on the inside of the bowls. There are no broken pieces and everything is in tact. The handles are made of cherubs as well as the pattern in the bowls. There is age related wear on both pieces which adds so much character to these pieces.
I would like to know what these might fetch in an auction. I am really very unsure of the worth. They may have more sentimental value than monitary?