Counter-Suggestion. Sowee, potato.by

Sold

http://www.tf2outpost.com/trade/12718940 - 1 key

http://www.tf2outpost.com/trade/12712417 - 3 keys

http://www.tf2outpost.com/trade/12712312 - 2.5 (Offer of 3, but I think someone got it first)

http://www.tf2outpost.com/trade/12709116 - 1 key

http://www.tf2outpost.com/trade/12708646 - 1 key + 5 ref

http://www.tf2outpost.com/trade/12708034 - 2 keys

http://www.tf2outpost.com/trade/12707984 - 2 keys + 1 ref

http://www.tf2outpost.com/trade/12707568 - 2 keys + 1 ref

http://trade.tf/listings/search/Sell/Unique/Cool%20Cat%20Cardigan/all/3 - Take a look here for note history.

http://www.tf2outpost.com/trade/12706780 - 2 keys + 4 ref

http://www.tf2outpost.com/trade/12705987 - 2 keys

http://www.tf2outpost.com/trade/12699172 - 2 keys

http://www.tf2outpost.com/trade/12697616 - 3 keys

http://www.tf2outpost.com/trade/12691357 - 3 keys

http://www.tf2outpost.com/trade/12690438 - 2 keys

http://imgur.com/HJ8nMzz - 2 keys

http://www.tf2outpost.com/trade/12689682 - 2 keys

http://www.tf2outpost.com/trade/12689223 - 2 keys

http://imgur.com/cFOnV1F - 3 keys

http://tf2tp.com/trade.php?trade=9626464 - 2 keys

http://www.tf2outpost.com/trade/12685067 - 2 keys

http://www.tf2outpost.com/trade/12683546 - 2 keys

http://www.tf2outpost.com/trade/12680572 - 2 keys + 1.55/1.66

http://www.tf2outpost.com/trade/12679733 - 2 keys

http://www.tf2outpost.com/trade/12678901 - 2 keys + 1.66

http://www.tf2outpost.com/trade/12678717 - 2 keys

http://www.tf2outpost.com/trade/12677856 - 2 keys + 2 ref

http://www.tf2outpost.com/trade/12677349 - 2 keys

http://www.tf2outpost.com/trade/12676024 - 2 keys

http://www.tf2outpost.com/trade/12674956 - 2 keys

Conclusion

Main going price is 2 keys, but can be sold for more, and 3 keys can happen.

Help / Consturctive Criticisim / Additional Proof / Counter-Proof is ALWAYS welcome! :D