The term "crown" usually refers to a design with "arms" radiating down the outer parts of a clear glass weight.
The design with internal arms supporting bubbles is sometimes called "fountain" - e.g for Ysart examples from Scotland. But for general European examples, "Bohemian Spider" is the norm.
Your example, Paul, is very likely from the Silesia / Thuringia / Bohemia / Czechoslovakia regions and yes, early 20th century or late 19th.