Mich, I wish to leave this question unanswered - there are to many possibilities:
Could also be made in France by Schlevogt, where the family went during the late Thirties.
Halama and Glassexport companies, and later Desna, produced and still make Hoffmann and Schlevogt designs in Czecho-Slovaquia, now Czechia.
Considering that it comes up quite often now, and, as Steven said, could also be made today, but by whom - I do not know
