antiquerose, yes thats all that I could find, there has been a couple of the same lighters on Ebay, and they have the same tops, both said that they came from the lighter company Hyglo, also could be Hy-glo. One auction stated the company run from 1931-1949 then closed due to a fire.
Mine only has USA on the metal part, that I could see. I also thought that the glass looked Murano. :huh: