Space Spy

https://backpack.tf/item/1656790382

Sale 1) Sold for an Orbiting Planets Brotherhood of Arms (49 Keys)

https://backpack.tf/profiles/76561198028853818#!/compare/1494201600/1494288000

Sale 2) Sold for a Bubbling Boxcar Bomber (37 Keys) + 7 Keys

https://backpack.tf/profiles/76561198208805320#!/compare/1494547200/1494720000

37 + 7 = 44 Keys

Boxcar Mini

https://backpack.tf/suggestion/5921b4d3c440454aa84f17bc - 37 Keys

Sale 3) Sold for a Miami Nights Smoking Skid Lid (22 Keys) + 18 Keys + ~1 Key of Refined

https://backpack.tf/profiles/76561198094964657#!/compare/1494892800/1494979200

22 + 18 + 1 = 41 Keys

Skid Mini

https://backpack.tf/suggestion/5921bb18c440455bb56c2af6 - 22 Keys

Sale 4) Sold + 3 Keys + ~1 Key of Items for a Purple Energy Fruit Shoot (49 Keys)

https://backpack.tf/profiles/76561198064692887#!/compare/1494979200/1495065600

49 - 3 - 1 = 45 Keys