I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Please note that a visually very similar symbol is used as a trademark by Liberty Fund, Inc and thus whilst the image is in the public domain, re-use of it in certain commercial contexts may potentially constitute trademark infringment.