Thanks Paul, I have had a search for Seguso Pulegoso items, some vaguely similar forms but never with trails in clear glass. I shall keep looking & see what I find.
Pron Gallery have this handled vase in Pulegoso glass, attributed to G. Ferro for AVEM but again the handles match the body of the piece rather than being clear.
http://www.pron.it/prodpart.asp?idprodotto=1110# I had hoped that someone would recognise the clear trails, they seem so distinctive, but nothing like it so far. Anyway, whoever made it, it has to be a bargain for £4!
Horochar, thank you, as you will see from my original post the vase clearly has age. The pontil mark is rough. I haven't had chance to photograph the base yet but will try to post a picture soon.
Steven