Stalhrim Helm

 is a piece of heavy armor and part of the Stalhrim Armor set found in.

Smithing
A requires a Smithing level of 80 and the Ebony Smithing perk to create. It can be forged at a blacksmith's forge with the following components:
 * ? × Stalhrim
 * ? × Quicksilver Ingot
 * ? × Leather Strips