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TiergartenPlan von Lenn . VerschnerungsPlan zu dem zwischen der ThiergartenStrae groen Quer Alle Exerzier Platz und Brandenburger Thor belegenen Theil des Knigl Thiergartens bei Berlin redesign plan by Peter Joseph Lenn for Tiergarten park in Berlin drawn by Gerhard Koeber quill pencil and watercolor cm Landesarchiv Berlin scan