Glama Glass Divided Platter Dorothy Thorpe 17" Serving MCM Atomic Gold Purple

This is a vintage round platter by Dorothy Thorpe.Gamma Glass. It has an iridescent quality. Changes color depending on the lighting and the background. On a black background it is gold. On a white background it is purple. Divided into 3 sections. I have a matching round plate in another listing. Measurements - Length - 17 3/4" Width - 10 3/4" Height - 1"