Last accepted suggestion was totally incorrect. I'll try to fix it. Proof is below. Less than 1 page in outpost.

Selling:

http://www.tf2outpost.com/trade/14835282 - wants 1 ref, very young trade

http://www.tf2outpost.com/trade/10371662 - looking for offers, got offered 1.44 ref, 1.66 ref, 2 ref

Another active trades has no offers or unrealistic buyouts.

Sold:

http://www.tf2outpost.com/trade/14273459 - sold for 1 ref

http://www.tf2outpost.com/trade/14399600 - sold for 1 ref

http://www.tf2outpost.com/trade/14145308 - sold for 1 ref

http://www.tf2outpost.com/trade/14706106 - sold for 1.33 ref

http://www.tf2outpost.com/trade/14453039 - sold for 1.33 ref

http://www.tf2outpost.com/trade/12920914 - sold for 2 ref (a bit outdated)

http://www.tf2outpost.com/trade/14720878 - sold for 2 ref

http://puu.sh/4Ix3n.png -> http://puu.sh/4Ix6p.png - sold for 2.66 ref (thanks to Offline)

http://www.tf2outpost.com/trade/13842378 - sold for 3 ref