Rikishi Boy (1970) by Shigeru Komatsuzaki

Pink Tentacle has a fantastic collection of sci-fi illustrations by Shigeru Komatsuzaki (1915 - 2001), a prolific Japanese illustrator who drew futuristic images for magazines and model kit boxes. Don't miss this one: Link - via metafilter

PS. If you like this, you'd love our sci-fi blog NeatoGeek