OPCo Syracuse China "Thebes" Plate -- Railroad Ware -- Onondaga Pottery Co.
By Onondaga Pottery Co. (a.k.a. O.P. Co. and OPCO). Onondaga, New York. The plate is porcelain with a vitreous glaze. White body with gold rim and an Art Nouveau decoration in gold and green. Syracuse China" printed in green on bottom of plate.