http://backpack.tf/vote/id/564aea3eba8d880b5ca94c7f ok

Sellers :

http://www.tf2outpost.com/trade/27443569 - 0,55 ref (Have 10)

http://www.tf2outpost.com/trade/27443474 - 0,55 ref

http://www.tf2outpost.com/trade/27441245 - 0,55 ref

Unsolds :

http://www.tf2outpost.com/trade/27273001 - 0,44 ref (Have 45)

http://www.tf2outpost.com/trade/27430743 - 0,55 ref (Have 3)

http://www.tf2outpost.com/trade/27132358 - 0,55 ref (Have 68)

http://www.tf2outpost.com/trade/27381622 - 0,55 ref (Have 65)

Sales :

http://www.tf2outpost.com/trade/27430511 - 0,55 ref

http://www.tf2outpost.com/trade/27424400 - 0,55 ref

http://www.tf2outpost.com/trade/27434075 - 0,66 ref

http://www.tf2outpost.com/trade/27413604 - 0,66 ref

http://www.tf2outpost.com/trade/27375310 - 0,66 ref

http://www.tf2outpost.com/trade/26942884 - 0,66 ref

Buyers :

http://www.tf2outpost.com/trade/27437596 - 0,44 ref

http://www.tf2outpost.com/trade/27432322 - 0,44 ref

bp.tf buyers :

http://imgur.com/nuonScv | http://imgur.com/mmPoJTc

7 at 0,44 ref

Conclusion :

1 mass seller at 0,44 ref but many buyers at that price. Sales at 0,66 ref still seems to happen. 0,55-0,66 ref seems good for now.