Edit: didn't notice there was a suggestion up for this already, hrm.. Not sure whether to leave it or not.

Sale 1

Sold for burning flames hound dog (100-115) and 10 keys = (107.5 * 0.9) + 10 = 107 keys

Seller before: http://backpack.tf/profiles/76561198044650255?time=1437030000 (July 16th)

Seller after: http://backpack.tf/profiles/76561198044650255?time=1437116400 (July 17th)

Compare link: http://backpack.tf/profiles/76561198044650255?time=1437030000&compare=1437116400

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Sale 2

Sold/offered with cloud 9 helmet without a home (14-18) for terror-watt brotherhood of arms (117) and bill's hat (2.2) - actually gonna use this to update the BoA

http://www.tf2outpost.com/trade/26201365

Seller before: http://backpack.tf/profiles/76561198044217878?time=1434438000 (June 16th)

Seller after: http://backpack.tf/profiles/76561198044217878?time=1434524400 (June 17th)

Compare link: http://backpack.tf/profiles/76561198044217878?time=1434524400&compare=1434438000

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Sale 3

Sold for green energy thirst blood (55-60), blizzardy stormy killer's kabuto (43), steaming master's yellow belt (16-18), ~8.5 key sweets and ~1 key in refined = ((57.5 + 43 + 17 + 8.5) * 0.9) + 1 = 114 keys

Seller before: http://backpack.tf/profiles/76561198060792631?time=1434265200 (June 14th)

Seller after: http://backpack.tf/profiles/76561198060792631?time=1434438000 (June 16th)

Compare link: http://backpack.tf/profiles/76561198060792631?time=1434438000&compare=1434265200

• Mini on blizzardy kabuto:

  Sold/offered with 6 keys for cloud 9 tyrant's helm (49) = 49 - 6 = 43 keys

  
  

  Seller before: http://backpack.tf/profiles/76561198119187186?time=1436166000 (July 6th)

  Seller after: http://backpack.tf/profiles/76561198119187186?time=1436252400 (July 7th)

  Compare link: http://backpack.tf/profiles/76561198119187186?time=1436166000&compare=1436252400

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Rounding for neatness. Feedback welcome.