Search for: [Subject and Keywords = archaeology] OR [Subject and Keywords = archaeological site] OR [Subject and Keywords = stronghold] OR [Subject and Keywords = geodesy] OR [Subject and Keywords = hipsometry] OR [Subject and Keywords = early Middle Ages \-\- Poland] OR [Subject and Keywords = Nowy Dwór, district Działdowo \(Poland\)] OR [Subject and Keywords = Masovia \(Poland\)] OR [Subject and Keywords = Prussia \(Poland\)] OR [Subject and Keywords = archeologia] OR [Subject and Keywords = stanowisko archeologiczne] OR [Subject and Keywords = grodzisko] OR [Subject and Keywords = geodezja] OR [Subject and Keywords = hipsometria] OR [Subject and Keywords = średniowiecze wczesne \-\- Polska] OR [Subject and Keywords = Nowy Dwór, pow. działdowski \(Polska\)] OR [Subject and Keywords = Mazowsze \(Polska\)] OR [Subject and Keywords = Prusy \(Polska\)] OR [Title = Plan tachimetryczny grodziska Nowy Dwór, pow. działdowski] OR [Title = Plan tachimetryczny grodziska Nowy Dwór, pow. działdowski] OR [Creator = Dzienis, Wacław] OR [Creator = Dzienis, Wacław]