Re-suggesting (again), credit to Discovery [⇄] #Exams for the sales below and credit to MaGenta | Backpack.tf for assisting with the price

Classifieds:

Sellers:

http://puu.sh/lupIk/393c1721f1.png

1 x 50 keys

1 x 60 keys (Unbumped)

Buyers:

http://puu.sh/lupKF/6e094750c6.png

1 x 40 keys

Sellers:

http://www.tf2outpost.com/trade/27452114 - wants 60

http://www.tf2outpost.com/trade/27455762 - Declined 40

Buyer at 40 keys:

http://www.tf2outpost.com/trade/27444150

Sales: - Credit to Discovery [⇄] #Exams for these:

http://www.tf2outpost.com/trade/27391465 - B/O of 45

Appears to have sold for Pro Aussie Wrench + Pro S.F. Huntsman + Pro S. Reserve Shooter

http://backpack.tf/profiles/76561198058244665?time=1447056000&compare=1447660800 (Buyer)

http://backpack.tf/profiles/76561198012196517?time=1447488000&compare=1447660800 (Sellers)

X = (32 + 10 + 4)0.9

X = 41

http://www.tf2outpost.com/trade/27441045 - b/o of 51

Sold for 49 keys in less than a day

http://backpack.tf/profiles/76561198058244665?time=1447833600&compare=1447660800

http://backpack.tf/profiles/76561198090464845?time=1447747200&compare=1447660800

X = 49

Going with 41-49