Creative Commons BY-SA
'License Overview: you are free to share, copy, distribute and transmit the symbols. You can also adapt and amend them. However, you must attribute the symbols and any you make to the author, Paxtoncrafts Charitable Trust (without implying we endorse you or your use of the work). In addition, if you alter, transform, or build upon these symbols you may distribute the resulting work only under the same license. Consequently, the same license follows these symbols around forever. Our intention is that these symbols remain free of cost, but please click on the image to view the full license, or contact Straight Street if you have any questions about ways in which these might be used, or waiving the license.