Search for: [Subject and Keywords = Stone Age \-\- Poland \/ Lithuania \/ Russia] OR [Subject and Keywords = East Prussia \(Poland \/ Lithuania \/ Russia\)] OR [Subject and Keywords = kamienia epoka \-\- Polska \/ Litwa \/ Rosja] OR [Subject and Keywords = Prusy Wschodnie \(Polska \/ Litwa \/ Rosja\)] OR [Title = H. Gros \: Auf den ...] OR [Creator = Sawicki, Ludwik \(1893–1972\)]