The identification difficulties focus on the problems of the cross-dynasty, the non-specific on the taboo, year dating and form, and the lack of print time and press on the republications etc.

造成鉴定困难有：出版跨清末民国时代，避讳、纪年和形制等不被遵循，翻印缺刊印时间和出版机构等因素。

youdao

The identification difficulties focus on the problems of the cross-dynasty, the non-specific on the taboo, year dating and form, and the lack of print time and press on the republications etc.

造成鉴定困难有：出版跨清末民国时代，避讳、纪年和形制等不被遵循，翻印缺刊印时间和出版机构等因素。

youdao