I may fail at pricing all of them at once, but I will succeed at pricing them individually.

Selling for 1.33

http://www.tf2outpost.com/trade/20793122 (Inactive, never bump, he even had a buyer but it seems that he didn't need it anymore)

Quick-sold for 1.33

http://www.tf2outpost.com/trade/20810660

Sold for 1.66

http://www.tf2outpost.com/trade/20551780

http://www.tf2outpost.com/trade/20530791

Conclusion: Before you say something stupid like "Not enough proof, downvote", take a look on the market first. This thing is so rare now. Demand > Supply because supply of craft hats went down and it's reasonable for this thing to rise.

Feel free to counter / support my proofs.

Sold for 1.66

http://www.tf2outpost.com/trade/20604036