A FINE AND EXTREMELY RARE SNOWFLAKE-BLUE VASE SEAL MARK AND PERIOD OF YONGZHENG

THIS IS A PREMIUM LOT. CLIENTS WHO WISH TO BID ON PREMIUM LOTS MAY BE REQUESTED BY SOTHEBY'S TO COMPLETE THE PRE-REGISTRATION APPLICATION FORM AND TO DELIVER TO SOTHEBY'S A DEPOSIT OF HK$2,500,000, OR SUCH OTHER HIGHER AMOUNT AS MAY BE DETERMINED BY SOTHEBY'S, AND ANY FINANCIAL REFERENCES, GUARANTEES AND/OR SUCH OTHER SECURITY AS SOTHEBY'S MAY REQUIRE IN ITS ABSOLUTE DISCRETION AS SECURITY FOR THE BID. THE BIDnow ONLINE BIDDING SERVICE IS NOT AVAILABLE FOR PREMIUM LOTS.

finely potted of slender ovoid form rising to a waisted neck and a flared mouthrim, carefully applied with a pale bluish-celadon glaze ground flecked and streaked overall with dark cobalt-blue speckles of vivid, violet tone, evoking a snowfall in a winter night, well controlled and continuing on to the interior and the base, save for the neatly finished footring treated in a dark brown wash in imitation of fired stoneware, the base inscribed in underglaze blue with a six-character seal mark

Sotheby’s Hong Kong, 16th May 1977, lot 147.

Sotheby’s Hong Kong – Twenty Years, 1973-1993, Hong Kong, 1993, pl. 343.

This vase is in overall very good condition. The actual colour is slightly deeper than the catalogue illustration.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

Vessels covered in this unusual glaze colour known under various terms, such as salan (speckled blue), xuehualan (snowflake blue) or qinjinlan (metallic blue) are special and rare. While the term qinjinlan tends to be preferred in China, in the West these wares are better known by the term snowflake-blue.  The earliest pieces covered in this attractive glaze are known from the Ming Dynasty, with a number of Xuande mark and period examples extant to this day. It is said that the cobalt-blue glaze mixture was blown directly onto the already fired but unglazed porcelain body, which was then fired at a low temperature (around 800-900 degree celcius) like cobalt-blue glazes found on Tang period earthenwares. This technique as well as the mottled effect and the varied range of tones from a light turquoise blue to an intense lapis lazuli tone are unlike those of any other glazes developed in the early Ming dynasty.  In fact, this glaze represents one of the most spectacular and surprising developments of the Ming imperial kilns in the Xuande period, and appears to have been one of the most difficult to fire successfully. The majority of wares covered in this glaze that have survived intact are bowls, however, recent excavations at the Jingdezhen imperial kiln site have revealed extensive experimentations during the Xuande period with this kind of glaze on a wide repertoire of shapes that include dishes, stembowls, narcissus bowls, jars and bowls. See a Xuande mark and period bowl in the Capital Museum, Beijing, illustrated in Shoudu Bowuguan cang ci xuan (Selection of Porcelains from the Capital Museum), Beijing, 1991, pl. 104; and another bowl with flared rim included in the Special Exhibition of selected Hsuan-te Imperial Porcelains of the Ming Dynasty, National Palace Museum, Taipei, 1998, cat. no. 131.

The revival of the snowflake-blue glaze during the Qing dynasty, under the reign of the Yongzheng Emperor, reflects the emperor’s impeccable taste and his fondness for ancient historical glazes. Under his reign, glazes imitating the five official wares of the Song dynasty were created, along with the present example after Ming prototypes. Yongzheng potters working in the Imperial kilns at Jingdezhen, Jiangxi province, showed their high level of skill by ‘re-creating’ aspects of early vessels and closely following models available from the court collection.

For examples of snowflake-blue glazed wares, see a tripod censer included in the exhibition Qingdai danse you ciqi tezhan, National Palace Museum, Taipei, 1981, cat. no. 39; a garlic-mouth bottle vase and a water vessel in the form of a pomegranate illustrated in Gugong Bowuyuan cang, Qingdai yuyao ciqi [ Porcelains from the Qing dynasty imperial kilns preserved in the Palace Museum], vol. 1, Beijing, 2005, pl. 126 and pl. 127 respectively; and a large globular form jar published in Kangxi. Yongzheng. Qianlong. Qing Porcelain from the Palace Museum Collection, Hong Kong, 1989, pl. 118.