An Austrian Silver Gilt and Enamel Mounted Etched Rock Crystal Cup Mark of Karl Rössler, Vienna, late 19th century Marked to foot and stem mounts, 'KR' and control marks rubbed. (H: 5, W: 4, D: 3 1/2 in.) Provenance Collection of a Philadelphia gentleman. Footnote: Note: For a similar example, see Sotheby's, New York, April 16, 2013, lot 284. Condition report: Most of the gilt applied to silver is rubbed. Two cracks to rock crystal bowl. Enamel with abrasions, rubbing. The stem reattached to mounts, some adhesive visible. Some discoloration to rock crystal.