Growing up, I was always told this bowl was Lalique, however, when I contacted the "RLalique" website they didn't have record of it and suggested I post here. I have been unable to locate a signature on the piece. It was given to my grandmother (born 1909) by a wealthy older couple, then went to my mother, who gave it to me. My mother died recently, and, if it has value, I’m interested in selling it. The bowl is about 15 1/2 inches in diameter and about 5 inches tall. The motif is birds with long tail feathers (they may be a specific type of bird, but I don’t know). The bowl is smooth glass on the interior. It’s quite heavy and there are also a few small air bubbles in the glass. Any information about it would be most appreciated. Thank you in advance for your help.