A set of 3 large format Devilman posters by Fuuma Nekomaru (風摩猫丸) sold on March of 1979 by the doujin circle Fantasy Club Fantasia (ファンタジア), who in turn created 2 large original Devilman themed manga. I am certain that the artist's name is a pseudonym, though the attention to detail on these pieces even as prints are quite gorgeous.

I acquired a ton of Devilman production materials, zines and 70s fanart from M among some other things, and he is thankful that everyone is appreciative of seeing them all. If you'd like to touch base, you can contact me at [email protected] or @retroanimechris on x/twitter/bluesky. DM me and we can trade Discords for more in depth conversations etc.

Internet Archive Backup - https://archive.org/details/fantasy-club-fantasia-devilman-posters
Website Backup (new look!) - https://retroanimechris.blogspot.com/2024/11/fuuma-nekomaru-fantasy-club-fantasia.html
MEGA Backup (included is the true scale version, 600dpi/4K/Ultra HD, you can print them etc.) - https://mega.nz/folder/asV3QC6I#GurBI1z1Uu4kwaIhh_xxQA