See when this book is valuable. There is no blue stack. The two books are well preserved and undamaged.

This is "Three Hundred Tang Poems", edited by Judge Heng Tang (Sun Zhu). It was first published in the 29th year of Qianlong (1764). Both of these books are published by Shanghai Publishing House (Bookstore). They are all versions of the late Qing Dynasty (that is, after the Opium War) after 1840. After Shanghai was forced to open a port, many bookstores emerged. One of them is a reprint of Yi Tang. Its specific history can't be found online. Personally, I think it should be between 1847- 1920. The year of Wei Wenge edition is B, this year is Wu Jianian, and next year is B. In other words, it may be published in 1776, 1836 or 1896. Combined with the previous inference in the late Qing Dynasty. It should be version 1896. "Three hundred Tang Poems" is widely circulated. There are many versions. But this kind of ancient books should still be very valuable and well preserved. Worth collecting.