Nice.

Sold for 18 Keys

http://backpack.tf/profiles/76561198006704542/#!/compare/1455004800/1455177600

Sold for an Electric Hat Protector Universal Translator(14 Keys)

http://backpack.tf/profiles/76561198090638888/#!/compare/1455264000/1455350400

Sold for 17 Keys

http://backpack.tf/profiles/76561198098003480/#!/compare/1455609600/1455696000

Sold with ~7 Keys in Sweets for an Australium Minigun(21 Keys at the time)(14 Keys total)

http://backpack.tf/profiles/76561198104036952/#!/compare/1456819200/1456992000

Sold for a Bubbling Backwards Ballcap(20 Keys) and ~2 Keys in Sweets(22 Keys total)(B/O was 16)

http://backpack.tf/profiles/76561198173855702/#!/compare/1456992000/1457078400

http://backpack.tf/profiles/76561198082544864/#!/compare/1457078400/1457164800

http://www.tf2outpost.com/trade/27916910

Sold with ~3 Keys in Sweets(at the time) for a Kill-a-Watt Big Elfin' Deal(19 Keys)(16 Keys total)

http://backpack.tf/profiles/76561198084367252/#!/compare/1457596800/1457683200

http://backpack.tf/profiles/76561198140269322/#!/compare/1457337600/1457683200

Sales seem to fit, 14-18 Keys should be fine.

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