Discovering unusual jewellery in Turku

I came home from a trip in Turku in Finland today. My honey and I visited Turku castle (museum) from 13th century and they displayed some unusual materials for jewellery. During the Beidermeier era the jewellery was made of fish-scale! And also from the same era – jewellery made of human hair! In the early 20th century the Finnish wore jewellery made of faceted mineral coal beads!