Since the last suggestion was made, I knew this was low.

Sold for 200 Keys

http://backpack.tf/profiles/76561198054443278?time=1432364400&compare=1432450800

http://backpack.tf/profiles/76561198005574075?time=1432278000&compare=1432364400

Sold with ~1 Key in Sweets for Aces High Antlers(74 Keys with Overpay), a Purple Confetti Powdered Practitioner(28 Keys with Overpay), a Roboactive Tungsten Toque(40.5 Keys with Overpay), an It's A Secret to Everybody Ye Oiled Baker Boy(37 Keys with Overpay), and a Disco Beat Down Belgian Detective(31.5 Keys with Overpay)(210 Keys total)

http://backpack.tf/profiles/76561198007474191?time=1435388400&compare=1436770800

Sold for 100 Keys, a Nuts & Bolts Team Captain(29 Keys with Overpay), a Circling Heart Engineer's Cap(27 Keys with Overpay), a Green Confetti Towering Pillar of Hats(18 Keys with Overpay) and ~6 Keys in Sweets(~180 Keys total)

http://backpack.tf/profiles/76561198074921500?time=1435474800&compare=1435734000

Sales seem to fit, 180-210 Keys should be fine.

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