This undated image combination shows file photos and sketches of a tiger-patterned axe-shaped stone relic unearthed at the Dinggeng Relics Site in Wuxi City, east China's Jiangsu Province. Archaeologists found an extremely rare stone relic, an axe-shaped weapon used for rituals in ancient China, engraved with a tiger pattern, in Wuxi City in east China's Jiangsu Province. The relic dates back some 4,500 years, during the Liangzhu Culture period. (Xinhua)