Wonderful Machines of the Far West, Vol. 1

Two red square ink seals (yinzhang) of the author. The upper seal is in seal script and reads "Seal of Wu Weizhong." The lower seal likely contains the author's courtesy name (zi), possibly reading "Seal of Shifan."

Affection for the ruler?

Compiled and written by the author

Wu Weizhong, Instructor of the Confucian School of the Prefecture

Mid-Autumn Day, in the first year of the Chongzhen era, in Yangzhou Prefecture, Zhili.