Comedy/Tragedy masks image...copyright?

I'm opening a business and want to use the comedy/tragedy masks image on my sign. Below is a link to the image I want to use. Does anyone know how I can find out if it's copyrighted and if so, by who?





http://www.un-scripted.com/blogs/alan/uploaded_images/comedy_tragedy-753761.jpg





Thanks!Comedy/Tragedy masks image...copyright?
The CONCEPT for the masks are public domain, since they have their origins in ancient Greece. But that specific design may be copyrighted. You can't just lift someone else's artwork and expect to use it freely.





Here is another example. No one can copyright a lion. It is natures creation so no one can own the anatomical specifices of what makes a lion. However, if an artist paints a picture of a lion, the artist OWNS that image and it's copyrights. No one can use that image without the owner's consent. (license)





No different with that specific image of the masks.





http://www.copyright.govComedy/Tragedy masks image...copyright?
Believe they are public domain.