(110418) -- LU'AN, April 18, 2011 (Xinhua) -- Archeologists hoist a piece of board from the outer coffin at one of the two ancient tombs believed to date from the Warring States Period (475 B.C.- 221 B.C.) in Lu'an, east China's Anhui Province, April 18, 2011. The coffins discovered in the two ancient tombs here started to be lifted out of earth Monday after the 18-day excavation. The tombs were found in early April and had been placed in the same direction, with one on the north end of the space and the other on the south end with a distance of ten meters between the tombs. Local archaeologists said that the tombs had never been pillaged. Because the coffins were made using high-quality wood, the contents of the tombs have been well-preserved. (Xinhua/Zheng Jinqiang)(hdt)