As Shibori aptly said in her previous post on this thread, Osamu Tezuka is certainly considered the father of postwar manga and tv animation. There were still a few works of his who we knew existed, but of which no copy was available. Until now that is: as the Asashi Shimbun relates:

"Five missing works by manga legend Osamu Tezuka, creator of "Astro Boy," were discovered in a collection of Japanese publications gathered by a U.S. censorship unit after World War II.

Takeshi Tanikawa, an associate professor of cinema history at Waseda University, said he found the short pieces in the Gordon W. Prange Collection at the University of Maryland."

Read the article here