It seems time forgot about these.

Sale 1) Sold for a Max's (28.5) + Bill's (2.9) = ~31 Keys

http://backpack.tf/profiles/76561198009758113?time=1427744667

Sale 2) Sold for a Steaming Wraith Wrap (26)

http://backpack.tf/profiles/76561198101329220?time=1428704744

~~~ http://backpack.tf/profiles/76561198152669311?time=1431899410 --- Wrap Sold for a Max's (26)

Sale 3) Sold for an Aces High YWN (33) * 0.9 = 30 Keys

http://backpack.tf/profiles/76561198067352964?time=1431623719

~~~ http://backpack.tf/profiles/76561198114269795?time=1429665469 --- YWN sold for an Eerie Orbiting Fire Stout Shako (33)

Sale 4) Quicksold + DP Front Runner (42 * 0.9 = ~38) for a Ghosts Rack (93)

http://backpack.tf/profiles/76561198117451303?time=1431670531

55 Keys (Outlier)

Sale 5) Quicksold for a Duped Knifestorm Dead Cone (38) * 0.9 = ~34 Keys

http://backpack.tf/profiles/76561198160331210?time=1431717424

~~~ http://backpack.tf/profiles/76561198047237459?time=1432300514 --- Cone sold for a Stormy Combover (38)

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Taking 26 - 34 as they're all close.