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.
Heptagon
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Captions
Unit colour shoulder patch 39th Battalion (Australia), 1st AIF and 2nd AIF
Patch d'épaule d'unité de couleur du 39ème Bataillon (Australie), 1ère AIF et 2ème AIF