More from Ebay. This was listed as Scandinavian, possibly Elme Glasbruk. There's age related wear on the bottom but other than that it's in remarkably good condition. Height 260mm, weight 882g. It is cased white inside. I reckon it's either American, Polish, pre-war Czech (bohemian), Austrian or maybe even Scandinavian. Any observations most welcome as I clearly don't know...