Articles by Tiffany with enamel decoration appear to be pretty rare as I have had only about 6 examples. Using the Pattern Number as a guide this platter was made about 1914-15. There ia a letter "N" after the Pattern Number, which does not appear in any of my reference books. Very good condition, enamel perfect. Small "N" monogram in the center. 10.75" diameter. 21 Troy oz.