The fish pws are difficult. So many of them are misattributed online and so few have labels. The fins of the fish remind me of the ones done by Seguso Dalla and Fratelli Toso, but the bubbly blue inclusion reminds me more of something I would expect from Archimede Seguso, Barbini, or Aureliano Toso. The brown with gold and the size of the fish are delightful. I would say probably not F. Toso or Seguso Dalla because the seaweed is much different than their standard. The quality of the dome looks better than most A. Toso weights I've seen. I am favoring Archimede Seguso or Barbini, but these are just guesses.