The Copyleft icon is a circle with a backwards letter “C” placed in its center. The “C” is a block letter, so it is really the outline of a “C” with blank space in between the lines.
This icon is a part of a collection of Copyleft flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality.
Idea of Copyleft Icon by Raynold
We've received the idea on October 28, 2013 and created the icons on September 17, 2014