While looking for the ID of this piece i found the twin to it, on a site, and they say although very similar to Flygfors "Coquille " Bowls.
The shape is the same, there mid century Swedish glass which is the same as this like but as with this it is not sighed, and even though they are not 100% sure but the best guess is that it is from the Hyllinge .
So that may open another avenue for this nice bowl.