This is an Cheese Cake or cheesecake recipe pie plate, baker, or pan, by Royal China in their Country Harvest line. The pan is 11" wide and 2" deep. Royal made these pie plates with a few different backstamps depending on when they were made. At one point Royal was owned by Jeannette. This one has the Royal China by Jeannette Corporation mark. It is in excellent condition.
Royal China Cheese Cake Pie Pan Recipe Plate