A unique feature of this Qianlong’s (1735-1796 AD) pair is the very thick and heavy body (about 2 to 3 times thicker than usual porcelain wares of this size). They are made of very fine clay. Also very unusual is their shape somewhat resemble ancient silver bullions. The inner bottoms show various degrees of wear with long crackle lines on the glaze, due to almost 300 years of use. The glaze is evenly applied with unctuous surface, and without the shine of newly fired porcelain. The glaze collects at concave lines to give bluer color, but drain thin at protrude lines to show very light blue color. These are some common features of many Qianlong monochrome wares. The unique combination of intense underglaze cobalt blue of Qianlong and the overlaying blue glaze causes the mark to become blackish blue. Later imitations of Qianlong sky blue usually have lighter marks; a feature distinguishes the genuine from the fakes. The last word of the mark (Zhi, 製, making) is unique; this style also appear on several other Qianlong imperial wares. Please consult the Chinese description below for more details. From Dr. Robert I-San Lin (#140 A&B), a senior Chinese artwork appraiser, whose grandfather was a major Chinese antique merchant in early 1900s. (Dr. Lin’s bio, in Journal of Authentication of Artworks, 2015, available on request). Brought to California in 1960s. 清乾隆天é’é‡‰éŠ€éŒ å¼æ°´ä»™ç›†ä¸€å°ã€‚æ¤å°ç›†é€ åž‹ç·šæ¢å©‰è½‰ï¼Œç«¯è˜ç¾Žéº—,奇特講究. 兩盆並排ã€æ¯”較çŸçš„一邊相é ã€å‰‡å‘ˆä¸€éš»è´è¶ç‹€ã€‚å£æ²¿å¯›è€Œå¤–撇，其下外å£æœ‰å‡¸å¼¦ç´‹å…©é€±, 三寛足, 足端寬平而長,平勻支æ’。漿胎,胎甚細潤而極厚é‡. 部份內å£è¿‘底處有許多垂直å°æŒ‡å¯¬çš„凹漕，在斜光下細細看æ‰å¯è¦‹åˆ°ã€‚é€™æ˜¯ç•¶æ™‚æ‰‹å·¥ä¿®é€ èƒŽæ™‚çš„éºè·¡ã€‚æ¤ç›†å£ç¨å‘下而內收å°ï¼Œæˆå½¢ä¸æ˜“，ä¸æ˜¯ä¸€èˆ¬è£½åœ“å½¢ç“¶ç¢—ç›¤çš„åŒ å¸«æ‰€èƒ½åšåˆ°ã€‚釉色為幽倩的淺天è—色ã€ç”šå¯æ„›ã€‚釉é¢ç´°æ½¤ï¼Œç”±æ–¼é«™æº«ç²˜åº¦ä½ŽåŠè¡¨é¢å¼µåŠ›å¤§ï¼Œå‡¸æ£±è§’線上釉薄而ç¨éœ²å‡ºé‡‰ä¸‹ç™½èƒŽ (å¤äººç¨±é€™ç¨®ç¾è±¡â€œå‡ºç‹”), 宋代é¾æ³‰çª¯æ›¾æ•…æ„åœ¨èƒŽä¸Šå †æ³¥æˆæ£±è„Šï¼Œä¸Šé‡‰ç‡’後æˆæ·ºè‰²ç´‹é£¾ï¼Œå‡¹è§’線上釉淤ç©è€Œè—色較深。這是å¤ä»£å¤©é’釉常見ç¾è±¡ã€‚外底心書"大清乾隆年製"ä¸‰è¡Œç« å¼é’花篆款ã€ç†åˆ’工整ã€é’花料為典型乾隆é’æ–™ã€ä½†åœ¨å¤©é’釉下呈帶黑的è—色。æ¤æ¬¾”製”特殊，å³é‚Šâ€œåˆ€”å—邊多一ç†ã€‚這種寫法在乾隆官窯ä¸å¶æœ‰ï¼ˆe.g., 見”å¤è‘£æ‹è³£å¹´é‘’”2011年，p.86,第2487件。ISBN 978-7-5356-4286-8，乾隆é’花èƒè„‚ç´…çºæžè“®ç“¶ï¼‰ä¹¾éš†åœ¨ä½å…å年，寫官窯款的人甚多，故乾隆款å¼è®ŠåŒ–很大，ä¸å¯æŠŠä¸å¸¸è¦‹çš„乾隆款當åšåƒžæ¬¾ã€‚å…¶ä¸ä¹‹ä¸€ï¼ˆ140A) å¤–åº•å› ç‡’æº«éŽé«™è€Œå‘下畧凸出，款之é’花更徧黑。å£æ²¿æœ‰æ•¸å¥Œé»‘æ–‘ã€ç‚ºä¹…年使用的痕跡。其ä¸ä¸€ç›†å…§åº•ä¹Ÿæœ‰è¨±å¤šå› 年久而自然形æˆçš„開片ã€è£‚紋細長無色。天é’釉æºè‡ªäº”代後周柴世宗的"雨éŽå¤©é’é›²ç ´è™•"色ã€äº”代天é’釉除柴æ±çª¯ä»¥å¤–很少見到。清康熙--ä¹¾éš†ä»¥éˆ·ç‚ºè‰²ç´ çš„æ–°é«™æº«å¤©é’釉ã€å¤šç”¨æ–¼ç‡’製å°ä»¶æ–‡æˆ¿ç”¨å…·ã€ç”šç貴。#140 A: 24.6 x 15 x 7.3 cm, 1499 grams.