3d flag of grand duchy of oldenburg 1774-1919.

3d flag grand duchy oldenburg 17741919 quot oldenburgquot germany lower saxonyquot niedersachsen neddersassen land region german wave waving background full illustration symbol wind fluttering curve emblem coat armsquot seal ensign banner render flagge wappen fahne rendered national illustrationquot renderquot cloth cartoon fold pleat fabric realistic grossherzogtum holsteinoldenburg holstein north confederationquot old former historical historic