Wineglass second half 16th century Italian, Venice (Murano) During the Renaissance, Venetian glassmakers, working on the island of Murano, were celebrated across Europe for their fine and sparkling work. Called cristallo” emulating the clarity of rock crystal, in the hands of the most skilled glassblowers the medium could be delightfully manipulated, variously stretched paper-thin flat, or playfully twisted, or blown into molds with spectacular patterns.. Wineglass. Italian, Venice (Murano). second half 16th century. Glass. Glass