Items, NPCs, quests, objects and spells of patch 1.12.1, read live from the realm itself.

Green Winter Hat

NPC	Level	Zone	Chance
Darkmaster Gandling Elite	61		100%
Goraluk Anvilcrack Elite	61	Blackrock Spire	100%
Prince Tortheldrin Elite	60 - 61	Dire Maul	100%