Purchased this via ebay.de, not knowing what it was; now that it has arrived it is far more attractive than I had imagined, but regarding ID I am not a bit wiser...
Stands 15.5 cm tall, thickwalled and quite heavy, blueish-grey with loads of slightly yellowish bubbles and some dark inclusions, thickly cased in colourless glass.
Softly indented base with circular polished pontil mark, unsigned.
I would think the whole thing is hotworked, but maybe only the rim is...
My first guess are the German makers like Gral-Glas, WMF, Zwiesel. But other options may be Benny Motzfeldt, or even Leerdam?
Thanks for any help,
Michael