Federal Glass Iridescent moonglow plate

Its captivating blend of colors adds a unique touch to any The Federal Glass Company introduced the "Moonglow" pattern in 1970, and it has since been retired. The glassware is made of white glass with an iridescent, opalescent sheen that gives it a rainbow-like hue. The pattern features a relief diamond pattern that radiates from the center. **This dinner plate does show signs of age and wear in the center of the plate. It has visible dark lines from use or something sitting on it. I could not get it off in the cleaning.*** check pictures