Just bought a vase in White opalescent, which looks like an Aureliano Toso piece, but has the same labe we are discussing... I'll post a pic as soon as I can.
Maybe the reason we are seeing all these, "generic" bowls/vases, for a lack of a better word, is that the companies Avem, Toso, etc. (like Paul mentioned above) used this other company to sell their end of day pieces? I really havent seen any piece, be it figure, vase or bowl, with a distint "master blower" imprint in it. They all seem to be "end of day" pieces.
Javier