I'm looking at p32, there is a mention of Pinzoni, but no pictures of anything made by him.
Trocadero is a very reliable source, although I had thought to lean a bit towards Eastern Europe for these pieces.
They don't turn up often and I do grab them when I find them.
The bubble part of the design is similar to pieces by Schott-Zweizel, and this very rainbowy iridesence is one I tend to associate with "Bohemian" glass and ceramics.
I've taken some pics, still need to sort them.