In 1952 Lutken designed a shape similar to this called "Knoglevase" for Holmegaard. It was in uncased Labrador (a dark smokey blue colour) and had no bubbles in the base. It was never put into full production and the few that very occasionally hit the market were bought at exhibitions.
In 1971 the pattern was reissued in Labrador cased in clear, and in clear glass, in five different sizes (patterns 2471 (largest at 50-75cm) through to 2475 (smallest at 13cm). As far as I know, these were just for an exhibition at Copenhagen's Kunstindustrimuseet (The Danish Museum of Art & Design) where a few of Lutken's 1950s designs were adapted and revised (including the beak vase). Both of the above should be signed with Holmegaard, the Lutken monogram, and the pattern number.
During the early 1970s the pattern was rejigged exclusively for tourists visiting the factory shop - but these were massive beasties, and had swirls of colour in the base, rather than the Aseda bubbles. I don't think these were signed.
Here's one that had just been made in 1973: Holmegaard Factory Tour