You need another sale.

Same as the other suggestion, bud. I'll leave this here:

Any hat can be priced based on a single sale if ALL these criteria are met:

- There are no other recent sales in the last 3 months

- The effect is not a Halloween 2014 effect.

- The hat went to a collector or person who intends to keep the hat. A collector can be identified by looking at the person's trade history, item history of similar unusuals in the backpack OR if the owner has not resold the hat 1 month after the sale occurred.

How Halloween 2014 effects will be handled (at least for now):

Regardless of whether a hat sold to a collector, you must have at least TWO sales for all halloween effect hats without exception. We'll probably change this rule in December. So if you do see a 1 of 1 hat go to a collector, bookmark the trade and hold onto it until then and you'll be able to price it off one sale before the sale becomes too old to use.

Direct quote from polar in the unusual cheat sheet.

Same as the other suggestion, you need 2 sales

since you relisted it for sale you will need to wait 1 month to do this type of suggestion. It also isn't 1 of 1 but that matters less than the reselling.

Feel free to resubmit in a couple of weeks if this is still the only sale: http://forums.backpack.tf/index.php?/topic/23324-what-the-fkis-wrong-with-you-people/#entry259002