Signed hand-blown Danish art glass spheres

Purchased in Denmark, these aqua blue art glass spheres with their twisted and complex (but closely matching) internal structures created from air bubbles were hand-blown in 1983 and are marked with that date on their base along with their creator's own name (see final large image below), which we have been unable to decipher. The spheres have a diameter of approximately 9cm (3.5 inches) and a weight of around 900g (2lbs) each and are in excellent condition.