Hi, I,m trying to date this lovely little Nachtmann German lead crystal paperweight. It is clearly etched Nachtmann to the base area. I know that the company was founded around 1834 by Michael Nachtmann but then was taken over by a comany using the name F X Nachtmann in 2004. My question is, was this paperweight made before or after 2004 and would the same markings be applied to the base area? Height 8.7cm.