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
Original upload log
This image is a derivative work of the following images:
2010-03-25T23:45:03Z Uzyel 500x500 (364 Bytes) {{Information |Description={{Commonist}} For more info, see [[:en:Wikipedia:Route diagram template]]. Curved track segment on [[:en:Berlin U-Bahn|Berlin U-Bahn]] line U 7. |Source=Based on [[:Image:BSicon_uSTRlf.svg]] by [[U