4 Good Chinese Yixing Teapots

4 Chinese Yixing Teapots, a Qing Dynasty large "Standard" with single hole to base of spout and seal mark to base, a small teapot with wide cover and enameled calligraphy and seal mark to base; a Dragon and Carp in Clouds Teapot with movable Dragon Head & Tongue to cover with cloud finial, and a large teapot with "golf-ball" strainer to inside of spout and impressed mark to base. Mostly in good condition, the first with a very tiny flake to tip of spout and edge of cover. Length of first from handle to spout 5 3/4 inches (14.6 cm.). Length of second from handle to spout 4 3/4inches (12 cm.). Length of third from handle to spout 5 1/2 inches (14 cm.). Length of fourth from handle to spout 6 1/2 inches (16.5 cm.).