Without a marking, I think you are going to have to settle for "One of the glass houses in the Stourbridge region of England, Victorian era."
No way to tell for sure.
David â€” I agree with Dave in a general sense. However "Stourbridge" would have to include other glassworks not actually located in or near Stourbridge, including Walsh, Kempton, and even Powell/Whitefriars.
As for dating, yes, "Victorian" in style, but not necessarily in date. Many of these pieces are Edwardian or later, often dating from as late as the 1920s.