Murano...is it Toso or Martens

[waltsumthing]

Hello,
I am trying to figure out the artist of this piece. I have been researching on the net as best I can, and I've found very similiar pieces by Toso and Martens. I cant figure out which of them made this piece. The label on the back is pretty worn but I can make out "Made in Italy" and the letters U R A N. The label is blue with what seems to be silver letters. I found a site that has pictures of various labels and they attributed this label to fratelli toso, but like I said the label is very worn so I can't be positively sure. I love this piece and I have never seen anything as beautiful. I would love to start a collection of these pieces, but I would like to be sure they are of the same artist.....maybe just to be pretentious and say " and here is my Toso collection" . I hope I have given enough information. thank you for your time.