Turn Teplitz Bohemia

We have a PStK Amphora 4996 it is a dark bue with a violet purple vase. Would like to know as much about it as possible. If it is worth anything, and if so where to sell it at. It also has a Turn-Teplitz-Bohemia, Austria,4996, and has a little piece broken on it, which we have no idea what happened to it we picked it up in a thrift store.