Unfortunately most of the time I have to disappoint and tell you that I am not an appraiser nor am I an authority on antiques, vintage or collectibles other than I recognize beauty and rarity.
The more unusual it is the more I will cherish it. But that is just me. As we all know Beauty is in the eye of the beholder.
A much better source for prices and history of porcelain and everything else antique is
The Kovels a go to for prices and news
I remember seeing the Kovel TV Show many times years ago and how fascinated I was by the down to earth Ralph and Terry Kovel. I don't think there is anyone who has not heard of these two wonderful professionals.
Hope you enjoy your hunt for that one special treasure. Remember maxwellvintage has over 800 wonderful items with a buy it now or make offer option. My opinion, for what its worth is, get your maxwellvintage item now, then let us all know what you found.