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/20885670

http://www.tf2outpost.com/trade/20877296

http://www.tf2outpost.com/trade/20884071

Selling for 1.66

http://www.tf2outpost.com/trade/20844608

Selling for 2.00

http://www.tf2outpost.com/trade/20790942

http://www.tf2outpost.com/trade/20768280

Sold for 1.55

http://www.tf2outpost.com/trade/20609235

Sold for 1.66

http://www.tf2outpost.com/trade/20641840

http://www.tf2outpost.com/trade/20565845

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. Don't remove 1.33 from the range because there are valid 1.33 sellers.

Feel free to counter / support my proofs.