From Wikipedia
The Lyres of Ur or Harps of Ur is a group of four string instruments excavated in a fragmentary condition at the Royal Cemetery at Ur in Iraq from 1922 onwards. They date back to the Early Dynastic III Period of Mesopotamia, between about 2550 and 2450 BC, making them the world's oldest surviving stringed instruments. Carefully restored and reconstructed, they are now divided between museums in Iraq, the United Kingdom, and the United States.
Strictly speaking, three lyres and one harp were unearthed, but all are often called lyres. The instrument remains were restored and distributed between the museums that took part in the excavations. The "Golden Lyre of Ur" or "Bull's Lyre", the finest, is in the Iraq Museum in Baghdad. The British Museum in London has the "Queen's Lyre" and "Silver Lyre", and the Penn Museum in Philadelphia has the "Bull-Headed Lyre".