The Helm of Torolf Ironfist

The Helm of Torolf Ironfist is an enchanted steel helmet which grants increased strength and stamina to the wearer.

Origins
Torolf Ironfist was originally a soldier in the Imperial Legions under Emperor Reman II, and served in the Four-Score War against the Dunmer. Winning great fame in these battles Torolf was eventually named Thane of his home city of Riften, and this helmet was created for him on order of the Jarl.

Torolf would later die in combat, but his helmet remained, and was placed in a special private museum owned by the Jarl of Riften. The helmet would later be stolen in 1E 2,881, but the Thieves Guild would not possess it for long, as 15 years later the guild would be driven from the Rift, and many of their greatest treasures from that region were lost at the bottom of Lake Honrich.

Recovery
After over five hundred years, fishermen working at Riften discovered the Helm, making the city news overnight. The helm was soon taken by the Jarl who awarded the Fishery handsomely, and had the Helmet authenticated, using the best historians they had to offer.

The Thieves Guild, operating in the city, were able to get one of their agents into these meetings, and confirmed the Helmet's authenticity, eventually launching a heist to recover the helm.