This is Weekly Shonen Jump, issue number 39 from 1973. The cover features George Akiyama, famous for "Zenigeba" and "Drifting Clouds." Other featured manga include "The Drifters," "Samurai Giants," "Dokonjo Gaeru," "Dr. Slump," "Astro Kyudan," and "Isamu, the Boy of the Wilderness," among others. There are also advertisements, such as "Matsumi Shokai," the originator of mail order that captivated young boys at the time. I once bought a little person who smoked cigarettes from them. For those who are interested. #561