A stunning specimen of a Tiffany Studios New York "Gooseneck" rosewater sprinkler vase, this piece is crafted from "Peacock" Favrile glass pioneered by Tiffany Glass and Decorating Company. In 1895, under the careful supervision of Louis Comfort Tiffany, George J. Cook developed Peacock glass and introduced the rosewater sprinkler shape. Cook remained with Tiffany's studio until 1909, when the production of Peacock glass ceased. This unique glass was created by combining five different types of glass, one of which was gold aventurine. Tiffany's artisans blended gold aventurine, blue, olive green, and translucent amber in a pulled feather pattern. Gold aventurine was produced by dissolving copper particles into molten glass, a technique originally invented by Venetian glassmakers in Murano. Tiffany’s glassmakers replicated this effect by adding copper or brass filings to the glass formula, resulting in a shimmering, glittering effect. One contemporary critic described aventurine as "ornamentation at once consistent, lovely, and full of mystery."