Large Blown Cobalt Murano/Venetian Soffiati Glass Vase Zecchin Martinuzzi.  This is an impressive and beautiful nlown cobalt venetian glass vase.  It measures 11 1/2" high  and 6" across foot.  Bottom has 4 prong pontil mark.  It is in excellent condition with no chips or cracks.  There is a hairlike thread of glass stuck on the outside, done in the making, not damage or a crack or anything, just occured when being made, and the glass is dark, so it is not really noticeable, see pics.  It dates to the early 20th C.