Uncraftable Max's Severed Head
Normally usable in crafting, this item is uncraftable, also known as 'dirty'. For a short amount of time you could receive this item from the Mann Co. Package as uncraftable. This was a glitch because the weapon was never available in the Mann Co Store.
There are 8 known instances of tradable 'dirty' Unique Max's Severed Head.
Max's Severed Head
Team Fortress 2 Limited Level 92 Hat
Expertly crafted headwear from cruelty-free farms in the Philippines. Hollowed-out skull casing wicks moisture away when in the heat of battle.
( Not Usable in Crafting )