Heller by Massimo Vignelli vintage plastic stacking plates 16 pieces set USA. Place setting for 4 with 16 pieces total. 2 mugs have cracks in the bottom inside. 1 has a chip as pointed to in the photos. All pieces have minor scratches from normal use. Very nice MCM design. Measurements are in the photos. #vintage #MCM #plastic #Heller #MassimoVignelli