This auction is for a pair of very collectible stoneware dinner plates from Iron Mountain Stoneware. They are decorated in the "Martha's Flowers" pattern, which was designed by Nancy Lamb herself for the Bicentennial year and named for Martha Washington. These plates were painted in the year 1991, by two different artists, as you can see by the initials. I know that F. stands for Frank Severt; however, I do not know who "M" stands for. These plates are 11" in diameter and are in excellent condition. Please email me if you have any questions. Thanks for viewing my listing and I hope you choose to bid. Please check out my other listings as well. Thanks and have a great day!