6 months old price :

Sale 1 (duped) : Sold for a Blizzardy Storm Barnstormer : http://backpack.tf/profiles/76561198197904041?time=1449216000&compare=1449302400

Mini for the Barnstomer : Sold for 13 keys http://backpack.tf/profiles/76561198053252981?time=1448179200&compare=1448265600

- - -

Sale (unused because complex) : Vivid Brainiac (~80) for Orb. Planets Stahl (~?) + Vivid Plasma YWN (~40) + 112 ref (~5.8) + 22 keys

http://backpack.tf/profiles/76561198075617654?time=1446969600&compare=1447056000

80 = (X + 40 + 5.8 + 22)*0.9

X = 21

Other Sale (duped) (unused) : Lime Max Head Lvl 58 (~27.5) for Smoking Chapeau (~20.2) + Orb. Planets Stalh (~?) + Spec. Killstreak Big Kill (~7.5)

27.5 = (X + 20.2 + 7.5)*0.9

X = 3 keys (can't used that ._.)

The others i checked didn't leave owner backpack for months...