This plate measures approx. 11 3/4" by 9" It is cream colored with a floral design on the rim. It is marked on the bottom Lido W.S. George Canarytone Made In U.S.A. 134A Also has the # 5S8621H. They were in business from 1904-1960. I believe this plate is circa 1935-1945 Please feel free to contact me if you have any questions. Thank you for shopping with us at Something Wonderful.