A good blue and white porcelain bottle vase with dragon decoration. Joseon Dynasty, 19th Century

Potted with a rolled rim to the wide neck and body of compressed pear shape painted in variegated shades of cobalt wash and outline with a four-clawed dragon pursuing a flaming pearl amid clouds, the exterior foot painted with a thin blue stripe and a celadon-tinged glaze applied everywhere except the foot pad. 12 1/4in (31cm) high. Estimate: $15,000 - 25,000

A fine and rare blue and white porcelain bottle vase with flowering branch decoration. Joseon Dynasty, 19th Century

Potted with a rolled rim to the tall neck that spreads outward to the compressed globular body raised on short foot, the richly hued cobalt outlines and washes defining leafy branches of flowering magnolia reversing chrysanthemum and a thin cobalt line accenting the foot, the celadon-tinged glaze covering all surfaces except the foot pad. 12 1/4in (31cm) high. Estimate: $15,000 - 25,000

A large blue and white porcelain dragon jar. Joseon Dynasty, 19th Century

Thickly potted with a body of inverted pear form finished with a canted edge around the base, painted in cobalt outline and wash with clouds around its cylindrical neck and a lappet band at the shoulder above a boldly painted dragon chasing a flaming pearl amid further clouds, the celadon-tinged glaze covering all surfaces except the foot pad. 19 1/4 (49cm) high. Estimate: $7,000 - 9,000

Two blue and white porcelain dragon jars. Joseon Dynasty, 19th Century

Each similarly potted with a tall neck and the body of inverted pear form finished with a canted edge around the foot, the surfaces painted alike with a four-claw dragon chasing a flaming pearl amid cloud scrolls that repeat around the the neck above a lappet band encircling the shoulder, the celadon-tinged glaze unevenly covering most surfaces. 13 3/4 and 12 3/4in (35 and 32.5cm) high. Estimate: $3,000 - 5,000

A blue and white porcelain storage jar. Joseon Dynasty, 19th Century

Its ovoid body boldly painted with a wide stripe of bright blue cobalt above the slightly concave band where the two sections of the jar were luted together while thin lines of cobalt accent its shoulder and lower body, the celadon-tinged glaze covering all surfaces except the foot and recessed base. 13 1/2in (34.5cm) high. Estimate: $3,000 - 5,000

Bonhams. Fine Asian Works of Art, 29 Jun 2009. 220 San Bruno Avenue, San Francisco www.bonhams.com