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Wappen Herzogtum Schlesien. Modified coat of arms of Duchy of Silesia with another crown of the upper eagle Wappen des Herzogtums Schlesien thumb left Hugo Gerhard Strhl Wappenrolle sterreichUngarns Erste Auflage Wien Tafel VII Creator Hugo Gerhard Strhl Hochgeladen von David Liuzzo PDoldauto thumb px left Original Coats of arms