Inspookter.

http://backpack.tf/item/719077945

Sale 1) Sold for a Circling Peace Sign Private Eye (20.5 Keys) + Smoking Demoman's Fro (11 Keys) + 2 Keys

http://backpack.tf/profiles/76561198156315732#!/compare/1490832000/1491091200

20.5 + 11 + 2 = 33.5, which rounds to 34 Keys

Peace Sign Private Eye Mini

http://backpack.tf/suggestion/591110c10e2cad113b53df25 - 20.5 Keys

Smoking Demoman's Fro Mini

http://backpack.tf/suggestion/591129cec440455c010e0656 - 11 Keys

Sale 2) Sold + 9 Keys for a Searing Plasma Modest Metal Pile of Hat

http://backpack.tf/profiles/76561198122093143#!/compare/1492300800/1492387200

http://www.tf2outpost.com/trade/28878362 - Capped by the Buyout of 32 Keys

http://backpack.tf/item/967144251

Sale 3) Sold for a Duped Burning Flames Magistrate's Mullet

http://backpack.tf/profiles/76561198019556015#!/compare/1488844800/1488931200

High Outlier.

Mullet Mini

http://backpack.tf/profiles/76561198122531258#!/compare/1488326400/1488412800 - Sold for a PE Whoopee

http://backpack.tf/profiles/76561198019556015#!/compare/1490313600/1490486400 - Sold for 45 Keys

http://imgur.com/a/vRPxp - Seller at 30 Keys

http://backpack.tf/item/719077945