Unique Paleo artifact! 2 3/8" Obsidian Black Rock Concave found in Harney Co., Oregon.

Unique Paleo artifact! 2 3/8" Obsidian Black Rock Concave found in Harney Co., Oregon in the 1960s. Anciently ground lower edges. The crafter shaped the base with a striking platform to create a flute but never struck it, so it remains an unfluted Paleo type.