I appreciate all the feedback.
I have sulphides from every American mentioned, Hamon, Joe Rice, Joe St. Clair Monte Dunleavy, Gibson, Gentile, Jim Hopper, etc.
All have been from the 70's through the 2007.
They all have had pristine globes, crystal clear, no lines, etc. Perhaps this piece was by a new apprentice, working for one of the above, but the glass is somewhat dark, and if it were a window, I would say it's more the consistency of water glass. The exterior has what I call "spin" marks, if this were a cast piece instead of a blown piece, I would say it has mold marks.
it has a completely translucent ground whereas the other sulphides I have all have a substantial solid ground, even when translucent, the ground has still been much more defined.
Even the deepest impressions of Joe Rice, and St. Clair, are only half as deep as the impressed I L or H.
Still a mystery to me, but thanks everyone for playing, : )
Bob