This platter was stored with other plates on top with newspaper. As a result the yellow from the paper soaked into the plate to the back. This plate was made by Sebring Pottery. These plates were made to promote the need for the average person to support the war by buying War Bonds and Stamps. It is Chantilly IT-S284. It's trimmed with 22K gold. 12" x 10-1/2". Though flawed, it has great history from 1943-1944.