Three Yixing teapots and covers 19th century

Three Yixing teapots and covers 19th century, the compressed globular bodies modelled with dragon head spouts, the cover finials as curled chilong dragons, one incised with flowers and calligraphy, two partially enamelled black with diaper and ruyi bands, all raised on three stump feet, seal marks, small faults and repairs, 19.7cm. (6) Provenance: the Arthur J Harris collection.