The Riihimaki Stromboli design is similar to your vase, but not quite the same, and yours does not appear to be clear-cased either - though my eyes might be deceiving me. You might want to consider the German firm Schott (Zwiesel), though their designs in this period were usually clear-cased too.
That said, there is something about the quality of the glass, its colour, clarity and finish, that puts me in mind of Josef Schott at Smalandshyttan. He is better known for his thick-walled moulded vessels, but I have seen some plain examples in these mid-century shapes.