Hi Anita, thanks for looking and for your thoughts. I appreciate it

It's a difficult one. The V&A said they thought my tazza was a good reproduction of a much earlier piece in their collection (I have seen the original 16th c piece pictures) but said they'd seen pieces like this being made much more recently than 19th century.
In the Met there is a jug that says possibly made by Pauly & Co, but then they say it was a gift in 1881 and it dates to c1860/1870. From what I'd read I thought Pauly & Co came into being in 1902.
http://www.metmuseum.org/Collections/search-the-collections/186123?rpp=20&pg=13&rndkey=20130930&ft=*&where=Italy&what=Vessels&pos=253#fullscreen
It has some vague similarities in design with my tazza and this pokal, in that it has gilded and enamelled decoration. I'm wondering how the Met arrived at 'possibly Pauly & Co'? I was thinking that perhaps this gilding and enamelling decoration is something Pauly & Co went on to do on their pieces for some time (if I understood it correctly that Pauly & Co did make some of their own glass? ), hence the Met's 'possibly Pauly & Co' attribution.
Which led me on to wondering if my tazza and this pokal might have been made by Pauly & Co but at a later date if you see what I mean?
I suppose it might also be possible that Pauly & Co stocked this type of decorated glass supplied by another maker and that is how the Met attribution came about again, having seen a labelled piece.
The only other pieces I've come across apart from this pokal, have been in the book Venetian Glass (page 58 and 61) and also this one
http://glessnerhouse.blogspot.co.uk/2013/02/venetian-glass-ewer.htmlm