2 Years outdated.

Sold for a Stormy Storm Triboniophorus Tyrannus(15 Keys with Overpay)

http://backpack.tf/profiles/76561198038096695?time=1436252400 (July 7th)

http://backpack.tf/profiles/76561198038096695?time=1436425200 (July 9th)

http://www.tf2outpost.com/item/440,3924943299,151,5 Tyrannus History

Sold for 13 Keys

http://backpack.tf/profiles/76561198207462751?time=1438844400 (August 6th)

http://backpack.tf/profiles/76561198207462751?time=1438930800 (August 7th)

Sold for an Orbiting Fire Samur-Eye(20 Keys with Overpay, Outlier)

http://backpack.tf/profiles/76561198076239220?time=1433746800 (June 8th)

http://backpack.tf/profiles/76561198076239220?time=1433919600 (June 10th)

Sold for a Terror-Watt Shooter's Tin Topi(15 Keys with Overpay)

http://backpack.tf/profiles/76561198044796260?time=1434006000 (June 11th)

http://backpack.tf/profiles/76561198044796260?time=1434092400 (June 12th)

Sold for an Aces High Officer's Ushanka(14 Keys with Overpay)

http://backpack.tf/profiles/76561198044796260?time=1434524400 (June 17th)

http://backpack.tf/profiles/76561198044796260?time=1434610800 (June 18th)

Sold for a Kill-a-Watt L'Homme Burglerre(14 Keys with Overpay)

http://backpack.tf/profiles/76561198072241551?time=1434697200 (June 19th)

http://backpack.tf/profiles/76561198072241551?time=1434956400 (June 22nd)

Sold for an Australium Black Box(16 Keys with Overpay)

http://backpack.tf/profiles/76561198062188487?time=1438930800 (August 7th)

http://backpack.tf/profiles/76561198062188487?time=1439017200 (August 8th)

http://www.tf2outpost.com/item/440,4018659410,612,5 Little Buddy History

20 seems high, the rest of the sales seem to fit. 13-16 Keys should be fine.

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