FWIW, although I believe the line art shows a similar decor by Loetz, I do not believe the line art matches the piece of glass. The proportions of the actual glass are a far cry from the proportions shown in the line art. So although I am confident that the line art shows a similar decor by Loetz, I am reasonably sure the two pieces are different. I am not sure that a solid match has been made to a Loetz example at this point.