Things of Middle-earth
Dragon-helm of Dor-lómin
Other Names: The Helm of Hador
Description:The Dragon-Helm of Dor-lómin was the greatest of the heirlooms of the house of Hador.
It was originally made for Azaghâl, Lord of Belegost, but was given by him to Maedhros. Maedhros afterward gave it as gift to Fingon. When Hador recieved the lordship of Dor-lómin, Fingon gave the Dragon-helm to him, and it had been passed down his line as an heirloom, until it came to Túrin.
"That helm was wrought of grey steel adorned with gold, and on it were graven runes of victory. A power was in it that guarded any who wore it from wound and death, for the sword that hewed it was broken, and the dart that smote it sprang aside. It was wrought by Telchar, the smith of Nogrod, whose works are renowned. It had a visor (after the manner of those that the Dwarves used in their forges for the shielding of the eyes), and the face of one that wore it struck fear into the hearts of all beholders, but was itself was guarded from dart and fire. Upon its crest was set in defiance a gilded image of Glaurung the dragon; for it had been made soon after he had issued from the gates of Morgoth."
Unfinished Tales, Part 1, Ch 2, Narn I Hîn Húrin: The Departure of Túrin
Gorthol 'Dread Helm' [was] the name that Túrin took as one of the Two Captains in the land of Dor-Cúarthol [after Beleg brought the Dragon-Helm to him].
The Silmarillion, Quenta Silmarillion Index of Names
Contributors: Elithien 08.29.03; Tanaqui 11.16.04: quote relating to Gorthol added