Slight raise.

Sold for an Australium Wrench(26 Keys at the time) and a Pro KS Rocket Kit(~20 Keys)(46 Keys total)(B/O was 40)

http://backpack.tf/profiles/76561198149240830#!/compare/1459296000/1459382400

http://www.tf2outpost.com/trade/27975420

Sold for a Phosphorous Brigade Helm(40 Keys)

http://backpack.tf/profiles/76561198157200494#!/compare/1459814400/1460073600

Sold for a Green Energy Detective Noir(45 Keys) and ~3 Keys in Sweets(48 Keys total)

http://backpack.tf/profiles/76561198053747026#!/compare/1460160000/1460246400

Sales seem to fit, 40-48 Keys should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.