Signed vintage Swirled Dome Glass Paperweight

This modern glass paper weight is an unusual oval shape & reminds me of the earth & sky. It is beautiful colors of blue, purple & white. The back side of it is flat. There is a piece of green felt on the bottom to protect your table tops. It is 4 3/4" and 4 1/2" wide and is in excellent condition. There is a chip on the base below the signature but it is smooth to the touch & of course does not show (priced accordingly). The signature on the bottom I believe is Walborg or Wolborg. The signature is somewhat difficult to make out & even more difficult to photograph.