An Yixing pewter-encased teapot and cover 1st half 19th century

An Yixing pewter-encased teapot and cover 1st half 19th century, the body formed as a bamboo section and incised with bamboo, prunus and calligraphy, the interior with an applied Yang pengnian zhi seal mark, 15.2cm. (2) Provenance: the Arthur J Harris collection.