Two Yixing teapots and covers 20th century

Two Yixing teapots and covers 20th century, one chocolate brown and raised on three small feet, incised with calligraphy and two quail beneath palm fronds, the other with bamboo and calligraphy, impressed marks to the bases and to the covers, 18cm max. The latter in a fitted box with a certificate and photograph of the potter. (5)