This is sort of a complicated one

Last range was wrong!

Remember this is a 1 of 1

Sorry for the inconvenience of the proof as outpost didn't have anything good to offer

Proof:

http://backpack.tf/id/76561198042426470?time=1385539200 Sort by value,

http://backpack.tf/id/76561198042426470?time=1386057600 Here he lost the 2 other 15 key valued unusuals, meaning he bought the unusual around 30-35 keys.

http://backpack.tf/id/76561198042426470?time=1386835200 Here if you have the backpack option on time, he aquired a bud and a B.M.O.C.

Also, the sharpshooter who is the new owner of the hat is in the history of the bud and bmoc.

Unusual overpay calculated 15+15 Average of both hats= 30x0.9= 27