The Jaw Harp is a very old musical instrument going back in time to at least the Dark Ages. Practically every nationality back in time has had the Jaw Harp. It is probably one of the easiest instruments to master & being small & light it is ideal for carrying when trekking & camping for round the camp fire entertainment. Most Living History Traders have the Jaw Harp for sale.
This is the author's copy of the Jaw harp made from bronze.