This image is in the public domain in Japan because its copyright has expired according to Article 23 of the 1899 Copyright Act of Japan and Article 2 of Supplemental Provisions of Copyright Act of 1970. This is when the photograph meets one of the following conditions:
It was published before 1 January 1958.
It was photographed before 1 January 1948.
It is also in the public domain in the United States because its copyright in Japan expired by 1970 and was not restored by the Uruguay Round Agreements Act.
And It is also in the public domain in countries where apply the rule of the shorter term
Only countries that are in the public domain
You may download, modify, and use them royalty free for anything you like, even in commercial applications.
Attribution is not required.
from Asahi Camera July 1956
