Sale #1

http://www.tf2outpost.com/trade/27367682

http://backpack.tf/profiles/76561197972737525?time=1447315200&compare=1447488000

Strange Professional Killstreak Australium Stickybomb Launcher = 20 * 0.95 = 19 + 4 = 23 Keys

Sale #2

http://www.tf2outpost.com/trade/27358005 B/o 28 Keys

http://backpack.tf/profiles/76561198053172418?time=1446537600&compare=1446624000

Sold for 28 Keys.

Sale #3

http://backpack.tf/profiles/76561198047706237?time=1443942000&compare=1444028400

Sold for 28 Keys.

Sale #4

Strange Professional Killstreak Hitman's Heatmaker = 4

Strange Professional Killstreak Original = 10

10 + 4 = 14 * 0.9 = 12.6 ~ 13 + 2 = 15 + 10 Keys = 25

Sellers

http://www.tf2outpost.com/trade/27515511 B/o 25 Keys, young at the moment

23 - 28 Seems to be the best range at the moment.

PRICE RANGE: 23 - 28 Keys