Here we go, first suggestion, I apologize if I did anything wrong.

It was the only one on outpost, but it had already sold and the trade is still not closed (owner told me he'd close it soon). Went unbumped for several days:

http://www.tf2outpost.com/trade/26822412

A friend of mine just noticed a discrepancy in numbers. It was actually sold to another gentleman for 15 who in turn sold it to me for 17. (probably messed up then

Bought for 17 keys pure:

http://imgur.com/NRP8bdw,iSkFbNQ#0 (shows the 17 keys)

http://imgur.com/NRP8bdw,iSkFbNQ#1 (shows that it is power surge)

As I said, first suggestion, so I apologize for any mistakes, constructive criticism and feedback greatly appreciated.