Please read all before voting. Wow. Only 2 on the Market. 7 Month Old Price... O.O Histories of the Previous Owners Trades were way too old... So I couldn't use those as proof... :C

Legit Trades:

http://www.tf2outpost.com/trade/13815300 - Up for 2 Weeks

Valid Offers:

12 Keys Pure.

Offer of 13 Keys Pure. The Seller said he would take this.

Orbiting Planets Gym Rat + "Some Items" Gunna call that ~13 – 14 Keys.

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http://www.tf2outpost.com/trade/12126015 - Up for 2 Months

Valid Offers:

12 Keys Pure

13 Keys Pure

1 Earbud if he added 11 Keys (22.5 Keys 1 Month Ago http://backpack.tf/vote/id/51e05476ba25368f43000006) = ~12 Keys

Nuts n' Bolts Professional's Panama (~12 Keys)

Steaming Janissary Ketche + Sweets (~12 Keys)

Nuts n' Bolts Rimmed Raincatcher + 2 Black Paints (1.7 Keys 1 Month Ago http://backpack.tf/vote/id/51ebaaa34bd7b87c6200000e ) = ~14 Keys

Massed Flies Counterfeit Billycock (~14 Keys)

Orbiting Fire Janissary Ketche + 2 Keys (~14.5 Keys)

CONCLUSION:

High range would be 14 Keys because of all the offers around it. Low range is 12 Keys because many people were willing to pay that much. Simple. :P