This really bowled me over!
bowl, Charley Reynolds, 8.5" x 3.25", glass, 1970
A thrift shop find. I believe that this is an example of the off hand glass blowing technique. I read the signature as "Charley Reynolds '70". I found this in Normal, IL, the home of Illinois State University, which has a well known art glass program, though I believe that this piece predates the art program there by a few years.
There is a well known glass artist named Charley Reynolds who is currently active, but he seems to exclusively produce glass smoking pipes. I contacted the editor of Glass Line magazine, and he did not think that this was his work.
It is a quite striking piece, though, and I have taken to leaving the lamp on the table where this sits lit 24x7. Just a pretty thing to walk by and look at.
I am not really expecting to find out much about this artist since this piece is nearly 50 years old and a quick search did not turn up any more potential candidates to be the artist. Possibly the work of a university student.