What is the name of the primary symbol, which is now outlawed outside of the context of art or science, and was widely used even on the state flag?
Strafgesetzbuch section 86a The German "Strafgesetzbuch" (Criminal Code) in § 86a outlaws "use of symbols of unconstitutional organizations" outside of the contexts of "art or science, research or teaching". This concerns Nazi symbolism in particular and is part of the denazification efforts following the fall of the Third Reich.
Flag and coat of arms of Selangor The flag and coat of arms of Selangor are state symbols of Selangor, Malaysia. These two symbols are distinct from each other in style. Similar to other states of Malaysia with Malay royalties, both the flag and arms of Selangor are influenced by royalties, Islam, and political symbols of the state.