Public domain icon.

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Gray version created by Duesentrieb, based on Image:Red copyright.png by Rafał Pocztarski

See also Copyright for more copright/copyleft symbols.

List of images provided by user Duesentrieb (This link helps me to find all my images) -- Duesentrieb