Alright then.

Added 11 Keys for an Australium Spec KS Rocket Launcher(~59 Keys at the time)(48 Keys total)

http://backpack.tf/profiles/76561198115014122#!/compare/1457078400/1457164800

Sold for an Australium Pro KS Scattergun(~44 Keys) and a Stormy Storm Troublemaker's Tossle Cap(~28 Keys)(B/O was 55)

http://backpack.tf/profiles/76561198052167739#!/compare/1457596800/1457769600

http://www.tf2outpost.com/trade/27925466

Sold for 50 Keys

http://backpack.tf/profiles/76561197990986202#!/compare/1456732800/1456819200

Sold for an Australium Spec KS Rocket Launcher(~59 Keys at the time)(B/O was 45)

http://backpack.tf/profiles/76561198018528305#!/compare/1455696000/1455955200

http://www.tf2outpost.com/trade/27712693

Sales seem to fit, 45-55 Keys should be fine.

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