(Click on the image above to download this pattern)
Here we have another TNG (The Next Generation) pattern, Worf’s Bat’leth.
According to Klingon mythology, the first bat’leth was forged by Kahless the Unforgettable in the 9th century. Kahless cut a lock of his hair and dropped it into the lava of the Kri’stak volcano, then plunged the burning lock into the Lake of Lusor and twisted it into a blade. After forging the weapon, he used it to fight the tyrant Molor, and then gave it its name. This story was not recorded in public texts, but was passed down verbally by the Klingon clerics as a test of Kahless’ return. (TNG: “Rightful Heir“)
The Sword of Kahless was preserved by the Klingons following Kahless’ death, until it was stolen by the Hur’q when they plundered Qo’noS about five hundred years after his death. (DS9: “The Sword of Kahless“)
Worf owned a bat’leth that had been in his family for ten generations. After his mate K’Ehleyr was murdered by Duras, Worf used this weapon to kill Duras in honorable combat. (TNG: “Reunion“)
During his time aboard the USS Enterprise-D, Worf trained both William T. Riker and Beverly Crusher in the use of the bat’leth. (TNG: “The Quality of Life“, “The Pegasus“) (http://memory-alpha.wikia.com)