A TURQUOISE OVERLAY BLACK GLASS ‘PRUNUS AND WILLOW’ SNUFF BOTTLE, QING DYNASTYBlack glass with turquoise-blue overlay, carved in relief with neatly incised detail. China, 1770-1850The bottle is carved in high relief through the turquoise-blue overlay to the opaque black ground on one side with a prunus tree, and on the other with a willow tree. The handles on each shoulder are composed of the longevity sign ‘zhou’ and a bat holding two coins.Shape: Rounded flat rectangular shapeHollowing: StandardMouth, neck and lip: The neck is emerging from the bottle, with a very thin lip and wide openingBase: Oval base with raised flat foot rim in turquoise-blue overlayStopper: Glass in imitation of pink tourmaline on a glass platelet in imitation of carnelianHeight of the bottle with stopper: 8.5 cm.Width of the mouth: 8 mm.Width of the neck: 12 mm.Condition: Overall good condition with few tiny nibbles to depiction, one to foot rim, the neck possibly with slight trimmingProvenance: Stephen Max Kellen, founder of the American Academy in Berlin; THE ANNA-MARIA AND STEPHEN KELLEN FOUNDATION, NEW YORKLiterature comparison: The Ruth and Carl Barron Collection of Fine Chinese Snuff Bottles: Part III. Christies, New York, September 14th, 2016, lot 427. (for a black glass bottle of the same shape and with a similar design, but a white overlay) Fine Chinese Ceramics and Works of Art (Part I). Christies, New York, March 22nd – 23rd, 2012, lot 1589. (for another black glass bottle, bit with yellow overlay)清代青綠色套黑料“桃花柳樹”鼻烟壺整體品相良好，畫面上有些微磕碰，足部邊緣與頸部可能有輕微修剪柏林美國學院創始人史蒂文∙馬克斯∙ 科冷Stephen Max Kellen；紐約安娜∙ 瑪利亞與史蒂文∙馬克斯∙ 科冷基金會