Sorry. They are lampwork tigers that could have been made anywhere. They are probably small, right? The tigers made by the different Murano companies in the old days were big and well detailed.
I know it is a disappointment. They are cute and enjoyable. A lot of work went into their detailing and they have feet that were made to last. Not Barovier, Poli, Barbini, Colleoni, etc., but nice lampwork.