Hi, must correct the information here.
This vase model B 895, named "Sputnik", is NOT of Gunnar Nylund design. Asta Strombergs stands behind this model for sure. Designed in late 1950s. She started to renew models (drawed by Gerda Stromberg in 1930/40s) in late 1940s and then drawed glass models for Strombergshyttan until 1976, when Orrefors took over leadership and ownersahip. Nylund came to Strombergshyttan 1952 and designed glass for the factory until 1975 (periodically he lived at Strömbergshyttan and periodically he sent drawings). Nylund and Asta Stromberg drawed glass parallel under the years, but i Think Nylund was most active in the 1950s. Later Rune Strand (1960s) and Anders Solfors (1970s) also have designed glass for Strombergshyttan. Under the Orrefors Years (1976 - 79) Gunnar Cyrén drawed glass produced in Strombergshyttan, for example the tableware Allmoge and Herrgard.
Often it is difficult to state designer behind Strombergshyttan glass. They mostly signed with model number, not designers name. This was a legacy of Edward Stromberg who believed that glassmaking was a team work with no one emphasized over another in the production process. But drawings and some input to catalogues state for sure who is behind different models. This one B 895 Asta Stromberg herself has verified she stands behind. She has also verified some other models as Nylund design. fore example B 937, B 930 and B 894. Some models from 1940s and 50s has my father made input to catalogues, with GS=Gerda Stromberg, AS=Asta Stromberg and GN=Gunnar Nylund.