Nice hexagonal crystal bowl, polished pontil. Diameter 12 cm, height 9 cm (4.7/16th and 3.9/16th respectively for the oldtimers) .
Despite serious library ferretting I have been unable to place it - At first I thought Sea but Skruf is another possibility. And I thought Lars Hellsten, but it seems Bengt Edenfalk did similar things, too.
Any ideas?