I would un wrap them, looks like modern work to me. If you look close, the solder is bright and shiny on the top ring mount. No way it would look that way if vintage IMO. Heck those fingers even look like they have been working with brass(LOL). And now I have looked even harder I see no surface waves and inperfections that should be seen on vintage sulphides(that have not been polished). Or a surface coloring done by a glass artist. These just scream fake to me, but then I have real good hearing..
Just my opinion and I have been wrong before, But I wouldn't buy them unless I had a few days to study them, thats a fact Jack