Sale 1:

Sold for Disco Beat Down Drill Sergeant’s Hat (41) + ~8 keys in items

http://www.tf2outpost.com/trade/28555326 - B/O of 40

Seller: http://backpack.tf/profiles/76561198090956917#!/compare/1482451200/1482537600

Buyer: http://backpack.tf/profiles/76561198071012049#!/compare/1482451200/1482537600

X = 40 (Capped by B/O)

Sale 2:

Sold for 35 keys

No outpost

Seller: http://backpack.tf/profiles/76561198034312547#!/compare/1483488000/1483574400

Buyer: http://backpack.tf/profiles/76561198158579646#!/compare/1483488000/1483574400

X = 35

Sale 3:

Sold for 31 keys in ~3 days

http://www.tf2outpost.com/trade/28782620 - B/O of 36

Seller: http://backpack.tf/profiles/76561198066231439#!/compare/1487376000/1487462400

Buyer: http://backpack.tf/profiles/76561198081175830#!/compare/1487376000/1487462400

X = 31

Sale 4:

Sold with Bubbling Glengarry for Isotope Field-Tested Airwolf Knife

Seller: http://backpack.tf/profiles/76561198088079103#!/compare/1483660800/1483747200

Buyer: http://backpack.tf/profiles/76561198192602363#!/compare/1483660800/1483747200

Should be used to update the Airwolf Knife.

Sellers:

39 keys:

http://i.imgur.com/ZL0StNw.png

http://backpack.tf/u/76561198081175830

http://www.tf2outpost.com/trade/28788537

http://i.imgur.com/I6vH5Vi.png

http://backpack.tf/u/76561198044130442

http://www.tf2outpost.com/trade/28781295 - 5 days

40 keys:

http://i.imgur.com/E0YglZa.jpg - 15 days

http://backpack.tf/u/76561198192602363

http://www.tf2outpost.com/trade/28770558

44 keys:

http://i.imgur.com/85gAxdN.jpg - 1 month

http://backpack.tf/u/76561197993992762

Sales at:

31

35

40

31 quicksold. Excluding 31.

Going with 35-40.