Search for: [Subject and Keywords = Middle Ages \-\- Poland] OR [Subject and Keywords = silver \(metal\)] OR [Subject and Keywords = medieval silver bars] OR [Subject and Keywords = średniowiecze \-\- Polska] OR [Subject and Keywords = srebro \(metal\)] OR [Subject and Keywords = sztabki srebrne średniowieczne] OR [Title = Srebro czyste i najczystsze w Polsce średniowiecznej] OR [Title = Srebro czyste i najczystsze w Polsce średniowiecznej] OR [Creator = Kiersnowski, Ryszard \(1926–2006\)] OR [Creator = Kiersnowski, Ryszard \(1926–2006\)]