NOTE: The article is the second one on the page. Sotheby's is auctioning 4 works by Banksy. These contain Untitled (Happy Coppers), Untitled, Mona Lisa, and Police. Happy Coppers contain two "coppers" which have a Wal-Mart smiley on their faces. Untitled shows a bird with a grenade in its mouth with a very cartoonish look. Mona Lisa has Mona Lisa with an AK-49 in her hands and a red target on her four head. Police shows a policeman with an anarchy sign behind him. Join discussion...