Classifieds:

Sellers:

http://puu.sh/jtoNp/164279a238.png

2 x 19 keys

3 x 20 keys

Buyers:

http://puu.sh/jtoU5/2fc6d1304c.png

5 x 18+ keys

SALES:

20 keys:

http://www.tf2outpost.com/trade/26663630

Quicksale:

http://www.tf2outpost.com/trade/26641412 (18 keys)

Other

http://www.tf2outpost.com/trade/26709635 (sold for duped GE Gym Rat) - Credit to Carnage

http://www.tf2outpost.com/trade/26684650 (Spec. KS, 20 keys. Sold for ~18.5 keys pure + 2 keys in items) - Credit to Carnage

Sellers:

20 keys:

http://www.tf2outpost.com/trade/26711377

http://www.tf2outpost.com/trade/26651469

http://www.tf2outpost.com/trade/25883582 (3 months? Not sure what to make of this)

http://www.tf2outpost.com/trade/26716518

http://www.tf2outpost.com/trade/26651469 (Not bumped often?)

http://www.tf2outpost.com/trade/26674378 (Gifted, unbumped)

19 keys:

http://www.tf2outpost.com/trade/26707205

Another 19 key seller, was originally 17, he changed it recently

http://www.tf2outpost.com/trade/26714744

4th 20 key seller moved his listing:

http://www.tf2outpost.com/trade/26716641