Devon blue floral porcelain dinnerware, vintage Castleton china set for 8

Devon pattern, vintage USA made Castleton china. This is a set for eight - eight 10 1/2" dinner plates - eight 6 1/4" bread and butter plates - eight cup and saucer sets - also one 13" oval platter. One of the cups has a chip, the other pieces look perfect, I don't believe this set was ever used.