Polished black stone hand axe attributed to Costa Rica, Central Pacific Watershed archaeological zone. Accompanying 1998 purchase documentation identifies it as approximately 3,000 years old. Measures about 6" long, 3 1/4" wide at the broad end, and 1 1/2" thick. Includes original eBay purchase paperwork showing a 1998 sale price of $49.00. See photos for condition and documentation.