THIS IS A VERY INTERESTING EARLY EXAMPLE OF A ROSTRATO MURANO MID 20TH C GLASS VASE. IT WAS FIRST MADE BY ERCOLE BAROVIER AROUND 1935. THIS IS MADE OF NICE QUALITY GREYISH GLASS WITH A GOOD HEAVY WEIGHT AND IS TYPICALLY UNSIGNED SO IT CANNOT DEFINITIVELY ATTRIBUTE IT, BUT IT HAS THE QUALITY OF GLASS FROM THE BETTER MURANO FACTORIES SUCH AS BAROVIER AND TOSO OR EVEN VENINI.