Killer Klowns From Outer Space

https://backpack.tf/item/3133862766

Sale 1) Sold for a Knifestorm Firewall Helmet + Chiroptera Venenata Conquistador + 2 Keys

https://backpack.tf/profiles/76561198156255538#!/compare/1507161600/1507248000

http://www.tf2outpost.com/trade/29382738 - Capped by the Buyout of 85 Keys

Sale 2) Sold + 2 Keys for a Steaming Virtual Viewfinder (104 or 106.5 Keys)

https://backpack.tf/profiles/76561198385727483#!/compare/1507766400/1507852800 - Seller's Backpack

https://backpack.tf/profiles/76561198009272632#!/compare/1507766400/1507852800 - Buyer's Backpack

http://www.tf2outpost.com/trade/29390049 - Capped by the Buyout of 95 Keys

Viewfinder Mini

https://backpack.tf/suggestion/5a431ed7cf6c75626b625896 - 104 Keys if the sale I commented was capped at 100 Keys, 106.5 Keys if not.

Sale 3) Sold for a Sunbeams Safe'n'Sound (65 Keys)

https://backpack.tf/profiles/76561198076469786#!/compare/1510012800/1510099200

Sale 4) Sold for a Haunted Ghosts Spook Specs + Max's Severed Head (~19 Keys) + ~17 Keys of Items + 1 Keys

https://backpack.tf/profiles/76561198156315732#!/compare/1511913600/1512000000

This would be better used to price the Specs.

Sale 5) Sold for a Circling Heart Brim Full of Bullets (40 Keys) + Purple Confetti Professional's Ushanka (38 Keys)

https://backpack.tf/profiles/76561198151835897#!/compare/1512950400/1513036800

40 + 38 = 78 Keys

Brim Mini

https://backpack.tf/suggestion/5a4b07ea44325a6054493e86 - 40 Keys

Sale 5) Sold for a Sunbeams Batter's Helm (67 Keys) + 18 Keys

https://backpack.tf/profiles/76561198009272632#!/compare/1508544000/1508630400

67 + 18 = 85 Keys

Batter Mini

https://backpack.tf/suggestion/5a4d5e5bcf6c754f6c7aef0c - 67 Keys

Calling 95 high.