Anguirel

One of a pair of iron-cutting swords forged by Eöl, the Dark Elf, from an iron meteorite. Anguirel's mate was Anglachel, which Eöl gave to Thingol in payment for leave to dwell in Nan Elmoth, and that sword went on to perform many mighty deeds - reforged as Gurthang, it was the sword that Túrin used to kill Glaurung.

Anguirel's history is far more mysterious. The only specific detail we have is that Eöl kept it for himself, but it was stolen by his son Maeglin. This must have happened when Maeglin and his mother Aredhel fled Nan Elmoth for Gondolin, so presumably the sword was taken to Turgon's Hidden City. What became of it after that is unknown.