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This flag is fictitious, proposed, or locally used unofficially. It has not been adopted in an official capacity, and although it may be named as if it was an official flag of a geographical or other entity and have some visual elements that are similar to official logos or flags of that entity, it does not have any official recognition. A flag of this type should not be added to any articles or pages unless it is officially proposed by a government agency, covered by the media, or sees notable local use.
Summary
Australian Eureka Flag.
This flag was first created and flown in 1854. It is highly likely that the design of the flag is in the public domain.
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.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Eureka_Flag.svg
Captions
Australian Eureka Flag. Created and flown at the 1854 Battle of Eureka Stockade.