Note:The enforcement of the revised Copyright Act on December 30, 2018 extended the copyright term of works whose copyright was valid on that day to 70 years. Do not use this template for works published after 1967.
Please note that being in the public domain in Japan does not automatically mean that it is free as well in the United States. Find and add one of the PD US license tags in order to ensure that the file is free in the United States. Typically, for a published work to be in the public domain in the United States, it needs to be published before 1946, because of URAA-restored copyrights. Unpublished works need to satisfy {{PD-US-unpublished}}.
This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
