Your bowl, while lovely, is an extremely common item. They are new, and currently for sale in many of the "discount" department stores in the United States.
These items are all marked "Made in Murano," so yours is indeed wearing its original label. However, I wonder if they are items that have been farmed out to Asian makers, then imported back to Italy for sale to tourists. I have been told that this imorting and remarking of glass is unfortunately becoming more common in Murano.