Wind Speed Ippeita - Shōnen Club #12 cover by Taku Horie (1958)

Featuring Yaguruma Kennosuke, published as a cover of 'Wind Speed Ippeita' in Shōnen Club #12 (Kodansha) of 1958.

I like the ninja guy getting slapped in the face with the sword. At first glance it looks like a Japanese castle in the background with rifles pointing out, but they actually appear to be flying castle tiers shooting stuff up! This manga apparently featured a castle that turned into a tank, so...

Titles are paste-ups
pencil, ink & watercolor on 8.5 x 13 inch paper.