Hot on the heels of the return post about Concernted Theatre Japan's special manga issue, I'm posting more images of work by Genpei Akasegawa from 1971.
These images come from the pages of 「黒い手帖 ブラックユーモア」 ("kuro no techo burakku yuumoa" - Black Memo/Black Humor), from May 1971. Doing a little digging, I found an interesting post (in Japanese) about the publication on the Komiyama Shoten bookstore blog. Thanks for the scans go to the fantastic Will of the great 50 WATTS blog.
You can find more about Akasegawa's work and his "Hyperart" movement/experiment with found objects in this Amazon listing for his Hyperart: Thomasson book.