许之衡(1877-1935),字守白。广东番禺人。1903年岁贡生。曾毕业于日本明治大学。历任北京大学国文系教授兼研究所国学门导师,北京师范大学讲师。一生对中国古典词曲声律颇有研究,亦擅刻印。著有《中国音乐小史》、《曲律易知》、《守白词》、《饮流斋说瓷》等。 请各位买家于拍卖前自行检查拍品的保存状态,并对您的竞买行为负责。图录中未说明的拍品保存状态,并不表示此件拍品没有缺陷或瑕疵。如有需要请向工作人员索取状态报告。We advise all buyers to carefully examine the condition of the auction lots before the auction and before bidding. If lot condition factors are not accounted for in the catalogue that does not mean the piece is without flaw. If you need further information about a lot please consult with one of the employees on hand at auction or preview for the complete condition report.