#10 Welsh Crwth
Originating In Wales, this ancient string instrument dates back to the 12th century and was played in competitive eisteddfods organized by wealthy patrons. It was originally made from a single plank of wood and played using a bow. Four original instruments are known to have survived and all are in museums, three in Wales and one in Boston, USA. Relatively recent research shows that there is a hidden aperture that runs the length of neck of the ancient instruments that is described as “a second sound-box”. This they say makes it unique amongst bow instruments.