Sale 1:

Sold for Circling Peace Sign Stout Shako + 7 keys + 18 ref + 2 keys in items

http://www.tf2outpost.com/trade/27054811

http://backpack.tf/profiles/76561198137917600?time=1442818800&compare=1442905200

X = 16 + 7 + 1.1 + 2(0.9)

X = 26 keys

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Stout Shako Mini:

Sold for 16 keys

No outpost link available

http://backpack.tf/profiles/76561198057770528?time=1442559600&compare=1442732400

X = 16 keys

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Sale 2: Not using

Possible bulk sale

http://www.tf2outpost.com/trade/27106444

http://backpack.tf/profiles/76561198065025130?time=1443078000&compare=1443250800