This is a set of four Dinner Plates in the Americana pattern made by Nikko. They measure 10 3/4 inches in diameter and are in excellent condition. Discontinued around 2002-2003, this is a patriotic designed white plate with a blue pattern, decorated with classic Country/Colonial American scenes, and designed by Charles Wysocki. All 4 plates are the same scene design, and are believed to be Porcelain. They have no indications that they've ever being used.