Help with Mid Century Art Glass Vases Please. Possible Murano #4

I have several pieces or 50'-60's art glass vases I would love information on. I will be listing them all so please give me any information you can. None of the pieces are marked, but several have signs of having a label on the bottom. If you go by eBay then every piece of glass ever made was made on the island of Murano. I believe that some of these pieces may have come from Murano, but I am no expert. Thank you for the help.