Category:Michael Otto (engraver)

These works or works by this artist may not be in the public domain, because the artist is still living or has not been dead for at least 70 years. Please do not upload photographs or scans of works by this artist, unless they meet one of the following exceptions:

• The work was first published in the United States and one of the United States public domain tags applies;
• The work is permitted by a legal exception such as freedom of panorama or de minimis;
• The work was released by the author or their heirs via E-mail confirmed authorization;
• The work was released by the author under an open license on their website, or an official account with a site such as Flickr;
• The work is known to be in the public domain for some other clear reason.

Works of this artist first published before 1929 can be uploaded to English Wikipedia (see en:Template:PD-US-expired-abroad). For more information, see Commons:Licensing and Commons:Derivative works.