Japan

Stone axes in the Edo Tokyo Museum in Tokyo. There are three polished stone axes on the left dating from 2000 BC to 500BC, and four cripped stone axes on the right, dating from 3000BC to 2000BC (all at the end of the Jomon period) This Wikipedia and Wikimedia Commons image is from the user Chris 73 and is freely available at http://commons.wikimedia.org/wiki/File:Stone_axe_edo_tokyo_museum.jpg  under the creative commons cc-by-sa 2.5 license.