Prehistory. Art. Metal Age. Lurs. The lur horns are the distinctively Nordic wind instruments. Used to create an atmospheric background of sound for Bronze Age rituals. All the lurs were found in
Prof. Joan Haaland Paddock: The Lur that Saved Norway - YouTube
Norwegian folk instruments | The birch trumpet
Lur | Viking Age, Bronze Age & Scandinavia | Britannica
Conservation of archaeological metal - part 3: Lurs