http://www.potsaa.com/shawnee-pottery/

I recently acquired a piece of pottery Shawnee?.
The flesh color and white with a fluted edge. It has the word "Shawnee USA" printed in the background and also the numbers 2502. My mother swears that this is something. Does anyone know how?
Google is not it http://collectibles.about.com/od/cookiejarpriceguides/a/shawneeprices.htm? Wonderful
shawnee pottery collectibles