Bradford exchange plates, limited Ed., Natures Harmony, 1999, each numbered. Are they worth anything?

I purchased these at a yard sale. I tryed looking them up on Bradford exchange, no results. There is a series of four, 95 firing days, each with seperate numbers, limited edition, year 1999. Excellent condition, by Rosemary Millette, Art reproduced Wild Wings, Inc. Bradex #84-Bll-414.4, The Bradford Exchange. Thank you