Counter Squad. Go!

http://backpack.tf/item/3158005908

Sale 1) Sold for a C9 Headsplitter (59) * 0.9 = ~53 Keys

http://backpack.tf/profiles/76561198152492059?time=1432882800&compare=1432796400

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Sale 2) Sold for a Secret Toque (70) + Black Merc's Muffler (~1) = 71 Keys

http://backpack.tf/profiles/76561198005299438?time=1434956400&compare=1435042800

Toque Mini

http://backpack.tf/profiles/76561198017866818?time=1433314800&compare=1433660400 --- Sold for a Stormy TC (55.5 * 0.9 = ~50) + 20 Pure

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Sale 3) Sold + Terror-Watt Dread Knot (~10) for a Gifted KaW HKC (84) + Spec KS Aussie FaN (~14.5) + Spec KS Aussie Blutsauger (~13.5)

http://backpack.tf/vote/id/55d4ff8dba8d88d2628b4593 --- Trade Images here

Not doing a Mini for the Dread Knot, as it would only change the value ~1 or 2 Keys.

112 * 0.9 = ~101 - 10 = 91 Keys

HKC Mini

http://backpack.tf/profiles/76561198173691566?time=1435561200&compare=1435647600 --- Sold for a Cloudy Moon Sergeant's (84)

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53, 71, 91

Ruling 53 as the outlier, due to higher offers.

http://www.tf2outpost.com/trade/26305636