I was tellin' everybody up your speed. That was a couple of years ago...

https://www.youtube.com/watch?v=kkrj6j3NETI

http://backpack.tf/item/1479509462 - Duped

Sale 1) Sold for a Stormy Tyrolean (17 + (7 * 0.9 = ~6)) = 23 Keys

http://backpack.tf/profiles/76561198044270517?time=1436857200&compare=1436943600

Stormy Tyrolean Mini

Sold for a Vivid Snaggle (Using 17 Keys Pure from the open suggestion) + ~7 Keys of Items

http://backpack.tf/profiles/76561198130359264?time=1442300400&compare=1442386800

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Sale 2) Sold for 16 Keys

http://backpack.tf/profiles/76561198027882328?time=1437116400&compare=1437202800