This porcelain bowl was manufactured by Haas & Czjzek, a prominent porcelain factory located in Chodau (now Chodov) in the Sudetenland region. This region was historically part of Bohemia and later became part of Czechoslovakia. The term "Sudetendeutsches Porzellan" specifically refers to porcelain produced in this German-speaking border region of Czechoslovakia.
The Sudetenland was annexed by Nazi Germany in 1938 following the Munich Agreement and was a focal point of geopolitical tensions leading up to World War II. Porcelain, produced in this area during the interwar period or just before the annexation often carries marks indicating its origin within Czechoslovakia with additional designations like "Sudetendeutsches Porzellan", like this bowl has, to denote the regional German character of the production.
