西藏乾隆宝藏五十八年一钱银币。(t) CHINA. Tibet. Sho, Year 58 (1793). PCGS Genuine--Environmental Damage, EF Details Gold Shield. 西藏乾隆宝藏五十八年一钱银币。环境损伤指一点钟至四点钟方向,接近腐蚀的厚重包浆。<p>(t) CHINA. Tibet. Sho, Year 58 (1793). PCGS Genuine--Environmental Damage, EF Details Gold Shield.L&M-637; K-1458a; KM-C-72; WS-0200. The "environmental damage" is the area of heavy toning from 1 oclock to 4 oclock which is verging on corrosion.