战国方孔圆钱文信 上美品。WARRING STATES: State of Qin, 250-220 BC, AE cash (3.53g), H-6.29, wen xin, with two angles above and two below, bold VF, RRR. Said to have been cast by the Marquis of Wen Xin, the father of Qin Shi Huang, who conquered all other Warring States and united China in 221 BC.