Three enamelled Yixing teapots and covers 18th / 19th century

Three enamelled Yixing teapots and covers 18th / 19th century, one of compressed globular form, glazed blue with a lion dog finial on a hexafoil cover, one similar but smaller and painted with rows of calligraphy and seal marks, the last with a tall neck and spout, painted with bands of flowers and scrolling foliage, one with a script mark, 22cm max. (6) Provenance: the Arthur J Harris collection. Illustrated (teapot on right): Patrice Valfré, Yixing: Teapots for Europe, p.194, no.100.