1, with the inscription "Shan Shan" and the seal "Du Weng";
2. The seal is "Guangbitang";
3. The signature is "Teng Gang is in Dalian"; "What is the seal? Teng Yin Gang ";
4. Travel all over the country, come to Joad and study for five years.
5. The signature is "Autumn Moon Liu Yongyu Bookstore"; The seal is "Liu Yong"
Others need to be carefully examined.