宋至金 鈞窰天青釉斂口大盌

sturdily potted with deep rounded rises rising from a spreading foot to a slightly incurved rim, unctuously covered overall save for the unglazed footring with a brilliant milky sky-blue glaze thinning to a mushroom colour along the rim and pooling around the foot

陳昌蔚（1907-1997年）收藏

Good condition.
"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."

此盌發色天藍，光瑩如寶石，向為鈞窰之經典釉色，備受搜求。其形樸渾圓，寬口窄足，釉如凝脂，潔淨無疵。鈞窰乃宋代五大窰之一，數百年來，中外博古之士對之青睞有加，蓋愛其釉渾厚緻密，或呈月白，乳濁不透；或呈絳紫、殷紅、天藍，明快亮麗。八十年代，研究發現此藍色調非顏料所致，乃光學效應使然。釉層經高溫窰燒，釋出大量氣泡，形成「乳濁反射」現象：光線穿過釉面，藍色光譜反射呈色，是以器身色澤明麗。為求此效，掛釉肥厚至關重要。原有觀點認為鈞窰多層施釉以致釉層稠厚，後細考窰址瓷片截面，知其僅施單層釉料，因其胎厚且多孔，吸收釉中水分，故而粘稠易掛，成就釉厚質潤之器。

論及器形、釉色，有二鈞盌與此相近，惟其尺寸略小，藏北京故宮博物院，錄於《鈞瓷雅集：故宮博物院珍藏及出土鈞窰瓷器薈萃》，北京，2013年，圖版6、7，另錄一大盌例，釉較乳濁，圖版8。玫茵堂雅蓄且有二盌，可資參考，圖見康蕊君，《玫茵堂中國陶瓷》，倫敦，1994-2010年，卷1，圖版387，及卷3，圖版1461。養德堂舊藏也有一器，載於《中国名陶展 : 中国陶磁2000年の精華》，東京，1992年，編號42，售於紐約蘇富比2015年3月17日，編號85；仍有一例，先後售於香港佳士得2011年6月1日，編號3501，及2016年6月1日，編號3118。

此盌為陳昌蔚（1907-1997年）舊藏；陳氏曾任中國石油公司總經理，後供職外交部，駐泰國任文化參事達十一年。歸台後，任台北故宮博物院顧問及國立歷史博物館研究員等職。陳氏亦熱心慈善，於1971年將個人所藏慷慨贈予台北故宮博物院。