Three Yixing brushpots 18th / 19th century

Three Yixing brushpots 18th / 19th century, one modelled as a tree trunk and applied with squirrels and leaves, one decorateds with Shoulao beneath a pine tree, the third enamelled with a bird perched on bamboo, the reverse with calligraphy, seal marks to two, 11.1cm max. (3) Provenance: the Arthur J Harris collection.