This hat seems to require a serious bump up. I bought it in hope of making a few keys profit, but this beaut was the most popular item on my trade. Might be a wide range, but hey, that's what the proof says.

Link to trade: http://www.tf2outpost.com/trade/16453762

Screenies below are for easily finding the correct offers.

25 keys - http://i.imgur.com/Ezok9t4.png

22 keys - http://i.imgur.com/za23pp2.png

22 keys - http://i.imgur.com/RNfG8kH.png

39 keys - http://i.imgur.com/47yqvuZ.png (2 buds + 5 keys, buds valued at 17)

25.5 keys - http://imgur.com/Qq8zyPz (what I bought it for)

The buyer was a nice guy. He deserves this.