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A pair of cobalt blue Peking glass vases. Qianlong Marks and Period

Each of compressed baluster form with a conical opening through the garlic-headed neck, the body of inverted pear form raised on a canted foot and the four-character mark within a square frame carved into the slightly recessed base. 47/8in (12.5cm) high. Estimate: $6,000 - 8,000

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A yellow Peking glass brush handle.

Carved in high relief with a band of dragons pursuing a flaming pearl amid clouds encircling the ferrule and repeated on the long, waisted handle terminating in a stiff leaf band at the top. 11 1/2in (29cm) long overall - Estimate: $3,000 - 5,000

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A 'sky blue' Peking glass stick neck vase. Qianlong Mark

The wide rim on its cylindrical neck showing two layers of opaque light blue glass, the pear shaped body raised on a canted foot and the recessed base bearing the four-character mark incised within a square frame. 10 5/8in (27cm) high - Estimate: $2,000 - 3,000

Bonhams. Asian Decorative Arts, 28 Jul 2009. 220 San Bruno Avenue, San Francisco www.bonhams.com