http://www.tf2outpost.com/trade/21007770 Here is the outpost trade for that sale you mentioned. You should usually mention outpost trades as this will be an easier reference for price moderators.

Here is another sale, as 1 sale won't do for this suggestion:

http://www.tf2outpost.com/trade/20187900 Sold for a Disco Beat Down Defiant Spartan

(2.5 * 0.9 = ~2.3)

Note: Remember that you need to follow a certain criteria for a single sale. Here they are below:

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 summer 2013 effect. (robo, 2013 halloween effects can be used as they are often rarely traded and rarely unboxed)

- 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.

Conclusion: Since there was another sale in 3 months, you cannot use 1 sale as this doesn't meet the criteria. I already found you a new sale, so the best thing to do here is close this suggestion and re-suggest with the added price.