Winter Warmth

http://backpack.tf/item/4066117990

Sale 1) Sold for an Orbiting Fire Sole Mate + Bubbling Ye Olde Baker Boy + 1 Key + 10 Refined

http://backpack.tf/profiles/76561198123288580#!/compare/1489708800/1489795200

This can be used for the Sole Mate.

Sale 2) Sold for 28 Keys + 15 Tour of Duty Tickets (~6 Keys)

http://backpack.tf/profiles/76561198131422813#!/compare/1489795200/1489881600 - Buyer's Backpack

28 + 6 = 34 Keys

Sale 3) Sold for a Showstopper Deep Fried Desire (40 Keys)

http://backpack.tf/profiles/76561198325294399#!/compare/1492473600/1492646400

http://www.tf2outpost.com/trade/28883000 - Capped by the Buyout of 30 Keys

Sale 4) Quicksold for 28 Keys

http://backpack.tf/profiles/76561198015384426#!/compare/1492560000/1492646400

Sale 5) Sold + 3 Keys for a Smoking Salty Dog (33.5 Keys)

http://backpack.tf/profiles/76561198148055775#!/compare/1494633600/1494720000

33.5 - 3 = 30.5, which rounds to 31 Keys

Sale 6) Sold + 1 Key for a Cloud 9 Honcho's Headgear (39 Keys)

http://backpack.tf/profiles/76561198077251918#!/compare/1494806400/1495324800

Can be used to price the Honcho's.

Sale 7) Sold for an Eerie Orbiting Fire Brigade Helm (35 Keys) + 2 Keys

http://backpack.tf/profiles/76561198253283897#!/compare/1496620800/1496707200

Can be used to price the Brigade.

Sale 8) Sold for 22 Keys

http://backpack.tf/profiles/76561198067441485#!/compare/1497225600/1497312000

Low outlier.

Sale 9) Sold for a Duped Eerie Orbiting Fire Bonk Helm (28 Keys) + 3 Keys

http://backpack.tf/profiles/76561198044009984#!/compare/1497225600/1497312000

28 + 3 = 31 Keys

Bonk Mini

http://backpack.tf/profiles/76561198149419308#!/compare/1496793600/1496880000 - Sold for a Duped KaW Anger (28 Keys)

Anger Micro

http://www.tf2outpost.com/trade/29225235 - Duped Seller for 28 Keys

http://www.tf2outpost.com/trade/29227480 - Seller at 27 Keys