An amazing set of 4 prehistoric stone lithophones origining from the Sahara Dessert. “Litho” is Greek for stone and “phone” means sound. Lithophones are musical instruments consisting of a purposely-selected rock that is tapped or rubbed with friction to produce musical notes. Portable and stationary lithophones have been utilized in ancient and modern cultures around the world, including Europe, the Far East, Africa, the South Seas, and South America. The pieces range from 15 7/8" H X 3" W X 2 5/8" D to 20 7/8" H X 3" W X 2 7/8" D. A tremedous collection of intriguing objects.