These 10 blue dinner plates were designed by Massimo Vignelli for Heller in the 1960s-1970s. All 10 plates are marked: Heller Design by Massimo Vignelli. Each plate measures 10 inches accross and have about a 1 inch rim. They are all in excellent condition with very minimal ware. These plates appear to have been rarely used. Insurance is optional but highly recommended as I will not be responsible for loss or damage without it and t will be no refunds, Thanks for looking, and good luck!