Birch trumpet
The birch trumpet (Norwegian: neverlur, Swedish: näverlur, Latvian: tās̆u taure, Lithuanian: ragas, daudytė, Finnish: tuohitorvi, Estonian: karjapasun) is a type of natural trumpet made of spruce covered with birch bark, known in Norway, Sweden, Finland, England, Denmark, Latvia, Lithuania, Belarus and Estonia. Even cruder and less durable versions were made of plain birch bark.