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2012.12.9 陕西历史博物馆 西魏 独孤信多面体煤精组印 此印为北周大司马独孤信之印.由26个面组成,其中14个印面上刻着楷书阴文,为"臣信上疏""臣信上章""臣信上表""臣信启事""大司马印""大都督印""刺史之印""柱国之印""独孤信白书""信白
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