A large enamelled Yixing teapot and cover 19th / 20th century

A large enamelled Yixing teapot and cover 19th / 20th century, painted with two lion dogs at play, beneath spearhead and key fret borders, four character enamelled mark, the cover impressed with two seal marks, the base with a square seal mark, the metal handle lacking, 22cm. (2) Provenance: the Arthur J Harris collection.