What anime is this black sword from? Here is a pic:



I got this sword at the Facts convention in Belgium, and suspect it's from an anime, but I am not sure which one. Is there anyone who knows it?
That should be Uchiha Sasuke's Sword of Kusanagi, from the Naruto series:



However, I'm not sure whether or not the Uchiha crest is ever shown to be on the hilt of the sword in the series.