Stangl Pottery Co., Trenton, NJ.STANGL BITTERSWEET CUP & SAUCER & 3 CUPS. 1962 - 1969. Stangl Pottery Co., Trenton, NJ. 1962 - 1969. All Fine, i.e. no defects. NOTE: Price includes the shipping cost over & above that added automatically in the shopping basket for the furthest postal zone from 17110. If you are a buyer in a closer zone, inquire about saving on shipping.