This stem is often confused with some Swedish stemware which has 5 lobes instead of the 4 on this pattern. Cambridge Allegro is sometimes confused wit it as well. The stem on this cocktail attaches directly to the bowl of the cocktail, the Allegro stem does not, there is a clear separation between the bowl and top of the stem. Please check the picture of the Allegro stem in the Cambridge gallery.The Seneca Ingrid stem also attaches directly to the bowl.
There are also three different Swedish manufacturers who make very similar stems with a lobed connector, One is named Astrid and it has a 5 lobe connector. Another is called Gulli and it has 4 lobes. The last one I also found in the " Crystal Stemware , Identification Guide" by Replacements Ltd. It was made by a company named Skruf and called Kungsholm. It looks like it is probably a 5 lobe stem.
