Category:Stamps by Johannes Oppenheuser

These works or works by this artist may not be in the public domain, because the artist 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;
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• 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.