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Keywords from Image Description:
Poppelsdorfer Allee . en Poppelsdorfer Allee in Bonn Germany lithography from around Poppelsdorfer in Bonn Lithographie um Original around Helga Stoverock Der Poppelsdorfer Garten vierhundert Jahre Gartengeschichte Dissertation at Bonn University ulb unibonn de pdf probably Josef Neunzig Clearly old enough to be public domain