Sellers:

http://www.tf2outpost.com/trade/27374943 - 3 Keys 13 Ref - 16 Days

http://www.tf2outpost.com/trade/27447144 - 3 Keys 13 Ref - 4 Days

http://www.tf2outpost.com/trade/27433352 - 3 Keys 12 Ref - 6 Days

http://www.tf2outpost.com/trade/27463784 - 3 Keys 11 Ref - 1 Day

http://www.tf2outpost.com/trade/27444374 - 3 Keys 11 Ref - 4 Days

http://www.tf2outpost.com/trade/27438093 - 3 Keys 9 Ref - 6 Days

http://www.tf2outpost.com/trade/27469790 - 3 Keys 8 Ref - Young

http://www.tf2outpost.com/trade/27366173 - 3 Keys 7 Ref - 18 Days (probably lowered price)

http://www.tf2outpost.com/trade/27399594 - 'bp.tf price' - 13 Days

http://www.tf2outpost.com/trade/27453208 - 'bp.tf price' - 2 Days

http://www.tf2outpost.com/trade/27461453 - 'bp.tf price' - 1 Day

Classifieds:

http://imgur.com/a/ukXgK - Most unsold for days :x

x3 3 Keys 7 Ref

x2 3 Keys 8 Ref

x1 3 Keys 9 Ref

x5 3 Keys 11 Ref

x1 3 Keys 13 Ref