Art Nouveau Silver Overlay Iridescent Glass Vase

Description:

Art Nouveau Silver Overlay Iridescent Glass Vase, cobalt blue glass with pale blue and green iridescent draped design and pinched body, overlaid with silver floral motifs, ht. 9 1/4 in.
Estimate $400-600

There is an approximately 1 in. long hairline crack extending from the rim (see photo). There are also two pin-prick size flaws to the glass in the make. The polished pontil is indistinctly etched, possibly 179 18585. The silver overlay is also stamped "sterling."