Lovely plates! I read this just after posting about Archimede Seguso signatures. The label is from the 80's, so it's definitely genuine Archimdede Seguso. I wonder if they added the signature because it was bought in Murano.
It's a good week to A Seguso. I bought a little dresser jar advertised as B & T despite its Seguso label. Also, got a couple of nice little AeM bowls, and an FT bird. Then I spoilt it all by buying a Chinese vase advertised as Murano but which the one fuzzy picture convinced me was Czech. At least postage was low and I only paid $8.00 for it.
Enjoy Christmas with your new plates.