Rare document for person who signature Deutsche Volksliste This is ID for person from Category II: Deutschstämmige !

Most you can find green and blue ID so this is for III and IV category .   

I know was 4 categories:

Category I: Volksdeutsche (German> "Ethnically German") -Persons of German descent who had engaged themselves in favor of the Reich before 1939
Category II: Deutschstämmige (German> "of German Descent") - Persons of German descent who had remained passive
Category III: Eingedeutschte (German: "Voluntarily Germanized") - indigenous persons considered by the Nazis as Polonized (mainly Silesians and Kashubs); Refusal to join this list often leads to deportation to a concentration camp
Category IV: Rückgedeutschte (German> "Forcibly Germanized") - Persons of Polish nationality considered "racially valuable", but who resisted Germanization

More info : https://en.wikipedia.org/wiki/Volksliste