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如何鉴定双旗币铜币真假

更新时间: 2020-07-01 00:00:00     

水洗法,将被测试的钱币放入清水中,数日后取出,附着在钱币上的泥土,油污,浮锈便会脱罗,假币上的作伪之处,也很容易发现;探针法,对于北测试钱币的局部存疑之处,用缝衣针等物进行试探性刺挑,古钱的真锈附着力强,坚硬,把缝衣针针尖头向下竖直下压,放手后钢针会倒下去,而假币的锈具有轻微弹性,钢针不易倒下;摩擦法,将锈色满身的钱币的边道,在水泥地上或者在细砂纸上摩擦几下,观察期露出的铜色与同时代钱币的铜色是否相符,若使拼合而成的钱币,摩擦后有可能露出拼合的缝隙;酸验法,结锈严重的钱币,用食用酸醋泡一端时间,或者是用稀

关键词: 如何 鉴定 铜币 真假

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