Sale #1

http://www.tf2outpost.com/trade/27433505

http://backpack.tf/profiles/76561198108935953?time=1447574400&compare=1447833600

Strange Specialized Killstreak Australium Force-A-Nature = 12 - 2 in sweets = 10

Sale #2

http://www.tf2outpost.com/trade/27387815 B/o 14 Keys

http://backpack.tf/profiles/76561198108935953?time=1447488000&compare=1447574400

Strange Professional Killstreak Australium Scattergun = 45

Strange Professional Killstreak Australium Flame Thrower = 30

45 - 30 = 15 capped at 14

Sale #3

http://www.tf2outpost.com/trade/27229807

http://backpack.tf/profiles/76561198056414007?time=1444806000&compare=1444892400

Bought for 10 Keys.

Sale #4

http://backpack.tf/profiles/76561198216410464?time=1448352000&compare=1448438400

Dead Presidents Handyman's Handle = 11 Keys pure + 3 in sweets = 14

Calling 10 a outlier.

PRICE RANGE: 14 Keys