The problem with this particular piece is simply the shape & foot could be Fenton, U.S. Glass (Tiffin) or Northwood although I doubt Northwood unless it was made in 1924-1925 just before they closed, but at the very least the above manufacturers & perhaps a couple more made this type of modified bowl/vase & I gave up long ago trying to decifer who did what with this design & how to tell which was which even though they were produced somewhat nearby from me. It isn't lack of love, its simply frustration.