In Wrath of the Lich King it is item level 258, requires level 80 and sells to vendors for 8g 83s 8c. In MoP Classic it is item level 245, requires level 80 and sells to vendors for 8g 83s 8c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Stormrage Crown Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Stormrage Crown suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Similar Items
The 10 items nearest to Stormrage Crown (item level 35) in item level among Armor > Leather, Head slot, from item level 32 to 37.
Blizzard numbers items as they are created, so the named items next to ID 49472 (49467 to 49477) were usually added in the same batch as Stormrage Crown: the same quest line, zone, vendor or reward set.