The washer is of shallow conical form, glazed in brown and black color tone similar to rust color, with patches of patterns in the interior, bottom unglazed.|Jin to Yuan Dynasty period.||Height: 1 3/4 in (4.4 cm) Diameter: 5 7/8 in (14.9 cm)|金元鐵銹花洗|磁州窯系乃北方最大一民窯體系，該系窯廠遍佈河南、河北、山西。尤以河南為多且早。該窯系歷史可追溯至唐代。此洗胎體厚重質樸，敞口，直腹，圈足，足胎白褐，飾以黑釉，盞內外壁皆有鐵銹斑，整器造型渾厚大氣。