Vintage Boonton Ware 5.75” Dessert Plates 106-6 Set Of 5 Luncheon Melmac Plates. This set of eight round multicolor plates from the 1960s features a Mid-Century Modern style and is made of glossy Melmac material. The plates are ideal for all occasions and include dessert, luncheon, and bread & butter plates. Each plate measures 5.75” in diameter and weighs 1.4 lbs for all 5 plates. Made in the United States, these vintage plates have an impressed backstamp.