Flag of the People's Association of Germans in Hungary (Volksbund).
Own work

Littlejohn, David (1985)       Foreign Legions of the Third Reich: Vol. 3: Albania, Czechoslovakia, Greece, Hungary and Yugoslavia (2nd print. ed.), San Jose, Californien:  R. James Bender, pp. 109–111  ISBN:  0912138297. 
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Thommy