Search for: [Subject and Keywords = early Middle Ages \-\- Poland] OR [Subject and Keywords = early medieval spurs] OR [Subject and Keywords = średniowiecze wczesne \-\- Polska] OR [Subject and Keywords = ostrogi wczesnośredniowieczne] OR [Title = O chronologii ostróg o zaczepach haczykowato zagiętych do wnętrza] OR [Creator = Żak, Jan \(1923–1990\)] OR [Creator = Żak, Jan \(1923–1990\)]