Finally got to price this thing.

Sold for a Stormy Storm Liquidator's Lid(14 Keys with Overpay)

http://backpack.tf/profiles/76561198123206870?time=1447315200 (November 12th)

http://backpack.tf/profiles/76561198123206870?time=1447488000 (November 14th)

http://backpack.tf/profiles/76561198079715276?time=1446969600 (November 8th)

http://backpack.tf/profiles/76561198079715276?time=1447488000 (November 14th)

Sold for a Searing Plasma Whoopee Cap(18 Keys with Overpay)

http://backpack.tf/profiles/76561198123722384?time=1442300400 (September 15th)

http://backpack.tf/profiles/76561198123722384?time=1442386800 (September 16th)

Sold for a Blizzardy Storm Hottie's Hoodie(17 Keys with Overpay)

http://backpack.tf/profiles/76561198080224467?time=1444374000 (October 9th)

http://backpack.tf/profiles/76561198080224467?time=1444460400 (October 10th)

Sold for a Haunted Ghosts Hot Dogger(19 Keys with Overpay)

http://backpack.tf/profiles/76561198122250984?time=1446969600 (November 8th)

http://backpack.tf/profiles/76561198122250984?time=1447056000 (November 9th)

Sold for a Purple Confetti Glengarry Bonnet(14 Keys with Overpay)

http://backpack.tf/profiles/76561198067741687?time=1447574400 (November 15th)

http://backpack.tf/profiles/76561198067741687?time=1447660800 (November 16th)

Sales seem to fit, 14-19 Keys should be fine.

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