7.

Don't ask.

Sold for 35 Keys, Outlier

http://backpack.tf/profiles/76561198021383012#!/compare/1463270400/1463356800

Added 13 Keys for an Australium Spec KS Rocket Launcher(~57 Keys at the time)(44 Keys total)(Credits to riihiiro for the sale!)

http://backpack.tf/profiles/76561198041902665#!/compare/1459900800/1459987200

https://gyazo.com/785e15f92006995b2f07e9ed560e9efe

Sold for 55 Keys

http://backpack.tf/profiles/76561198060090660#!/compare/1461888000/1462233600

Sold for 43 Keys

http://backpack.tf/profiles/76561198193582843#!/compare/1462752000/1462838400

Sold for an Australium Rocket Launcher(56 Keys at the time), a Green Energy Sergeant's Drill Hat(~52 Keys) and a Pool Party(4 Keys)(112 Keys total, Outlier)

http://backpack.tf/profiles/76561198105733892#!/compare/1460678400/1460764800

35 seems low, and 112 is well. Yeah.

43-55 Keys should be fine.

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