My cousin seems to think the tureen I have from my mother's estate is a Flow Blue piece. There is a stamp on the bottom looks like semi-porcelain England Vermont is under the "seal" and there is a No for it in the lid as well as the bottom of the piece. I need help in finding out whether this would be worth an appraisal to know its actual value.
I would appreciate any help or advice. (I know it's at least 60 years old.)It's in excellent condition.