Hello, My wife picked it up and hoping someone might recognize it. My usually productive online searches didn't turn up anything on this one.
About 19cm tall. No stopper or evidence of having had one (well. no glass on glass scratches anway). Decorated with two applied medallions and applied spiral wrap on the neck. Open ring pontil scar (not shown).
Appears to be signed with a roto tool but I'm not certain. I thought initially that the mark above the signature was an 'R' and part of the name, now I'm not sure. Then I thought it was 'SR', maybe a company mark, but the last image is my retracing of how that bit was made based on examination under microscope and it doesn't seem to be an S-anything. Could still be an R or TR or something else entirely.
I'm in the USA but not certain what part of the world it was made.