These glasses appear to be of the Murano Venetian kind. The knops contain gold leaf and the metal has a bell-like ring to it. There appear to be some black seeds in the glass, suggesting age older than the last 50 years, but I am not sure. I have seen glasses similar to this said to be by Salviati but I don't know if other makers produced glasses like this.
Each glass is approximately 4.4 inches (11.2 cms) tall.
If anyone can provide more positive identification, that would be great.