This hat is extremely hard to sell at high or even low end price at the moment.

First of we can look at the classifields: http://backpack.tf/stats/Unique/Ebenezer/Tradable/Craftable

If the classifields change, I've saved a picture 30 minutes before posting this. http://imgur.com/2zmbO3g

Unsolds at 2.9-3 keys:

http://www.tf2outpost.com/trade/17819295 - 3 keys (almost 2 months)

http://www.tf2outpost.com/trade/17985891 - 3 keys (1 month)

http://www.tf2outpost.com/trade/18658508 - 3 keys (1 week, have 3 of them, no one sold)

http://www.tf2outpost.com/trade/18691322 - 3 keys (6 days)

http://www.tf2outpost.com/trade/18716304 - 3 keys (5 days, have 3 of them, no one sold)

http://www.tf2outpost.com/trade/18748033 - 2 keys, 6 ref (4 days)

http://www.tf2outpost.com/trade/18742359 - 2 keys, 6 ref (4 days)

http://www.tf2outpost.com/trade/18750248 - 3 keys (4 days, have 2 of them, no one sold)

http://www.tf2outpost.com/trade/18733619 - 3 keys (4 days)

http://www.tf2outpost.com/trade/18767560 - 3 keys (3 days)

http://www.tf2outpost.com/trade/18814878 - 2 keys, 6 ref (16 hours)

Sellers below 2.9:

http://www.tf2outpost.com/trade/18819429 - 2 keys, 4 ref

http://www.tf2outpost.com/trade/18743950 - 2 keys

http://www.tf2outpost.com/trade/18539768 - ~2 keys

http://www.tf2outpost.com/trade/18087690 - 2 keys, 5 ref

http://www.tf2outpost.com/trade/18816699 - 2 keys, 5 ref (Got 2 of them)

http://www.tf2outpost.com/trade/18818638 - 2 keys, 5 ref (Paint worth 2.33)

http://www.tf2outpost.com/trade/18723145 - 2 keys, 5 ref

http://www.tf2outpost.com/trade/18757079 - 2 keys, 6 ref (Paint worth 3.33)

Sold:

http://www.tf2outpost.com/trade/18714156 - 2 keys, 3 ref

http://www.tf2outpost.com/trade/18792311 - 2 keys (Pink)

I've chosen the low end price as 2.5 which is approximately 2 keys, 4 ref. The high end price which is 2.7 comes from 2 keys, 5 ref which may take a bit longer too sell. I didn't feel the need to put in buyers seeing as 90% of the people are quickbuying at 2 keys.