Oh whoops, it wasn't a key in sweets. I didn't need to resuggest :L

Sold for an Orbiting Planets Copper's Hard Top(11.5 Keys, rounding to 11) and 1 Key(12 Keys total)

http://backpack.tf/profiles/76561198136567984/#!/compare/1458864000/1459555200

Sold with ~8 ref in sweets for a Blizzardy Storm Magnificent Mongolian(11 Keys, rounds up anyways)

http://i.imgur.com/J3Cp7PU.png

Sold for 7 Keys and ~3 Keys in Sweets(10 Keys total)

http://backpack.tf/profiles/76561198218375863/#!/compare/1459900800/1459987200

Sales seem to fit, 10-12 Keys should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.