(I'm saying this now, this is my first suggestion. I'm not entirely sure I'm doing it right. Please tell me what I've done wrong for future reference. Thanks.)

3 month old price.

http://www.tf2outpost.com/trade/26341808 Selling for 23 keys. (was offered a Smoking Company Mann and a key, the Company Mann is 18-26 keys.)

http://www.tf2outpost.com/trade/26402439 Selling for 25 keys.

http://www.tf2outpost.com/trade/26325583 Selling for 25 keys.

http://www.tf2outpost.com/trade/26025258 Was offered http://www.tf2outpost.com/trade/26311608#latest. Which was offered a Stormy Storm El Jefe. (I know this by checking his inventory and the offer in the comment) The El Jefe's price range is 22-24 keys. The Jefe is a generally a more sought after hat.

http://www.tf2outpost.com/trade/26146253 Was offered "Cloud Nine Counterfeit billycock with spell Voices from Below, painted a deep commitement to purple + Vintage Tipplers Tricorn painted white, Genuine Siberian Sophisticate, Genuine Area 451."

That's all. Please leave feedback on why you upvoted or downvoted. Thanks for your time.