As always, need this for something else.

Sale 1: Sold for 8 keys

http://backpack.tf/profiles/76561198195667307/#!/compare/1457938800/1458025200

Sale 2: Sold for Strange Specialized Killstreak Australium SMG[8.3 keys via mini]+Boneyard Sniper Rifle (Minimal Wear)[1 key via mini]+ Strange Specialized Killstreak Direct Hit[1 key via mini]+ Strange Specialized Killstreak Sydney Sleeper[0.8 keys via mini]+18 refined[1 key]

http://backpack.tf/profiles/76561198144843063/#!/compare/1456041600/1456300800

8.3+1+1+0.8+1=12.1 rounding to 12 keys

Mini on SMG:

Sellers at 8.3 keys https://gyazo.com/fa2ead0072baab9aa87c62e30895d763.png

Mini on Sniper Rifle:

Seller at 1 key https://gyazo.com/c44228c1f3b05f5e97ce3a8fa8770e1e.png

Mini on Direct Hit:

Seller at 1 key https://gyazo.com/b7067915f503cea17999a8c0929b1a43.png

Mini on Sleeper:

Seller at 14 ref https://gyazo.com/d10498b5214657be62b0df9809255192.png

Buyers at 8 keys

http://www.tf2outpost.com/trade/28006088

http://www.tf2outpost.com/trade/26826422

http://www.tf2outpost.com/trade/27257564

http://www.tf2outpost.com/trade/27167163

http://www.tf2outpost.com/trade/27931756

http://www.tf2outpost.com/trade/26827781

http://www.tf2outpost.com/trade/27117162

Buyer at 9 keys

http://www.tf2outpost.com/trade/26576593

So I have sales at 8 and 12, but 8 seems to be an outlier due to these buyers. Making this 12 keys flat.