Thanks for the insight ahremck
The seller, an auction house, claims they sell 100% murano, which I highly doubt they know exactly what Murano is, I have a few pieces from way back, and I bought these to put on my website for sale, but will no way represent these if I am not 100% sure they are authentic.
What bothers me about some of my pieces is the signature(or so called) are etched over existing normal wear scratches, this was the biggest red flag for me, on several pieces after close scrutiny and a good magnifying glass. This is what prompted me to contact the auction house.
These pieces are gorgeous, heavy, and brightly colored and very nice to look at, but I feel not murano, hence my postings here to try to get some clarity
Thanks so much