The No Smoking sign, designed by one of the members of AIGA
Developed by <a rel="nofollow" class="external text" href="http://www.aiga.org/content.cfm/symbol-signs">AIGA</a>.
<a rel="nofollow" class="external text" href="http://www.aiga.org/content.cfm/symbol-signs">www.aiga.org/content.cfm/symbol-signs</a>