An ancient metiorite sword made in the elder days when the elves and dwarves were still in fellowship. It was named: Angmorenar - Iron of the black star.
There are ancient dwarvish and elvish runes engraved on the guard and along the blade. Below you can see the translations of these engravings.
On the guard (dwarvish runes): O i nilme o i moriquendi ar i naugrim - Of the alliance of the elves and the dwarves
On the sidepiece at the base of the blade (dwarvish runes): Aure entuluva - Day shall come again!
On the balde (elvish runes): Ecet vamme turo ana rucs ullumr voronwa - Blade unbreakable, forever enduring
There is also a three letter engraving on the sidepiece that reads: Eol. Eol was an elf and he was the mightiest in skill of hand among his people, and had the most knowledge of smithwork. In the making of Angmorenar Eol had the cheif part.