Resuggesting, fixed range, should be okay now. (I always have to resuggest ;-;)

Sale #1 :

Sold for 12 keys pure :

http://imgur.com/nQcZ8Er

http://imgur.com/BJL0HNO

Outlier.

Proof #2 :

Got offered 13 keys pure

http://imgur.com/HHcK2z1

13 keys

Also an outlier, I can't rely the low-end on an offer (?)

Sale #3 :

Sold for 14 keys pure

http://imgur.com/Pyma4Su

Setting as low-end

Proof #4 :

Got offered 11 keys + an B.M.O.C :

http://www.tf2outpost.com/trade/26908417 2-nd offer.

11 + 4 keys (3.6 with overpay) = 15 keys (14.6 after overpay)

15 keys (14.6 keys also rounds up to 15)

Setting as high-end value

Sales at 12 keys and 14 keys and offers at 13 and 15 keys, 12 keys is an outlier, took 14 as low-end and 15 as high-end

None on outpost, one listing on backpack.tf at 14 keys, 11 ref (14.69 keys) (not sure, if screenshot is needed to that, like on normal item suggestions, but here it is http://imgur.com/QktBkUF )