Unknown Block on the Book of Change

Among the blocks I bought, there is one on Eki gaku 易学. Unfortunately, I can not identify any detailed information about it.

Printing block of Shakuson hassō no zu miyo no hikari 釋尊八相之圖三世の光 (1885)

Printing block of a 1885 Japanese book, owned by Jiang Wu

Reverse side

Among the blocks I purchased, there is one from the following book:
釋尊八相之圖三世の光 : 8卷 /
Shakuson hassō no zu miyo no hikari : 8-kan

Author: 宗顗. [宗顗著]. ; Shūgi.
Publisher: 淨土扶宗會, Tōkyō : Jōdo Fusōkai, Meiji 18 [1885]
Edition/Format:   Print book : Japanese
Database: WorldCat