This is a French 'beginning of motorway section' symbol C207. Author Madcap. The image was made using proportions and colour schema published by French government agency: 'Direction de la Sécurité et de la Circulation Routières' in 2002. This image is a traffic sign and is public domain since it's part of the French legislation.

This work 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.