A nice piece. I cannot comment confidently on the specific origin of this piece, "pulegoso" style-"schaumglas" etc.. as I am finding, can be a very tricky thing to attribute, without a direct Beranek pattern match, with an unusual feature like an amber rim, unpolished pontil rod mark.. ... can make it difficult for attribution ...... and so ....... I have to side with Jindra ,,,, who has the same view I think...
Robert (bOBA)