using the translate option I've translated the article attached in my post #36 above.
Within the information it says:
'As early as 1922, the company offered a wide range of colored glass and painted glass (for example, garnet glass), lead crystal products with cut decors, glass from "special crystal" (I could not define it) and so on. It was mainly beverage and decorative glass ... shoe holders and more. An interesting part of the production at that time was undoubtedly densely decorated glass, where techniques of cracking, optical forms, chipped decors appear' (my underlining)