古钱一组。六枚，均获公博评级。五枚出自战国时期，是中国最古老的钱币之一。均可见历史痕迹，有绿色铜鏽，但铭文仍然可阅。清朝铜钱保存颇佳，黄铜并未氧化，细节依然分明。
1) 战国时期半两，GBCA-"美 85"。重7.9克。直径：32.5 毫米。
2) 战国时期半两，旋穿，GBCA-"美 85"。重9.3克。直径：36.2 毫米。
3) 战国时期半两，厚重，GBCA-"美 82"。<b>重13.3克</b>。直径：35.9 毫米。
4) 战国时期半两，绿锈，GBCA-"美 80"。重10.9克。直径：34.2 毫米。
5) 战国时期半两，GBCA-"美 82"。重8.4克。直径：37.8 毫米。
6) 清朝康熙满汉福，GBCA-"美 82"。重4.2克。直径：27 毫米。
(t) CHINA. Sextet of Cash (6 Pieces), ND (ca. 2000 B.C. - 1662 A.D.). All Certified by Gongbo Historical Coins Authentication Corporation.
1) Ban Liang. Warring States Period. Cash, ND (300-200 BC). Graded "Beauty 85" by the Gongbo Historical Coins Authentication Corporation. Weight: 7.9 gms. Diameter: 32.5 mm. cf.-Hartill-7.7.
2) Ban Liang. Warring States Period. Cash, ND (300-200 BC). Graded "Beauty 85" by the Gongbo Historical Coins Authentication Corporation. Weight: 9.3 gms. Diameter: 36.2 mm. Hartill-7.6.
3) Ban Liang. Warring States Period. Cash, ND (300-200 BC). Graded "Beauty 82" by the Gongbo Historical Coins Authentication Corporation. Weight: 13.3 gms. Diameter: 35.9 mm. Hartill-7.6.
4) Ban Liang. Warring States Period. Cash, ND (300-200 BC). Graded "Beauty 80" by the Gongbo Historical Coins Authentication Corporation. Weight: 10.9 gms. Diameter: 34.2 mm. Hartill-7.6.
5) Ban Liang. Warring States Period. Cash, ND (300-200 BC). Graded "Beauty 82" by the Gongbo Historical Coins Authentication Corporation. Weight: 8.4 gms. Diameter: 37.8 mm. cf.Hartill-7.6.
6) Sheng Zu. Qing Dynasty. Cash, ND (1662). Graded "Beauty 82" by the Gongbo Historical Coins Authentication Corporation. Weight: 4.2 gms. Diameter: 27 mm. Hartill-22.98.
All nice collection of Chinese cash, all certified by a Chinese company. 5 examples from the Warring States period, and these examples count among the oldest Chinese coins ever produced. Each example from this period shows its age, with all examples presenting varying amounts of green patina, though each has readable inscriptions. The Qing issue is well preserved with no oxidation of the brass and a beautiful delineation of details.
