Ellen has given you good advice. I am the regional director for the State of Washington, and will help you with any questions you may have. I would make a list of what you have, sizes, condition, pattern and potter name. The back stamps on your pieces show this information (Ebor by Ridgway, Verona by Wood & Sons). You can also request to join our Facebook group, Flow Blue and Mulberry Followers, and post photos there. Please let me know if you need any help.