What would happen if this became all-class? Hmm.

Sold for a Bubbling Carouser's Capotain(at least 8 Keys) and ~4 Keys in Sweets(B/O was 12)

http://backpack.tf/profiles/76561198044871940?time=1448784000 (November 29th)

http://backpack.tf/profiles/76561198044871940?time=1448870400 (November 30th)

http://backpack.tf/profiles/76561198152034218?time=1448697600 (November 28th)

http://backpack.tf/profiles/76561198152034218?time=1448870400 (November 30th)

http://www.tf2outpost.com/trade/27417836

Sold for a Dead Presidents Handyman's Handle(11 Keys)

http://backpack.tf/profiles/76561198055984998?time=1444892400 (October 15th)

http://backpack.tf/profiles/76561198055984998?time=1444978800 (October 16th)

http://backpack.tf/profiles/76561198149605676?time=1444978800 (October 16th)

http://backpack.tf/profiles/76561198149605676?time=1445065200 (October 17th)

Sold for Bubbling Ze Goggles(12 Keys)(Item IDs match)

http://backpack.tf/profiles/76561198051599413?time=1446274800 (October 31st)

http://backpack.tf/profiles/76561198051599413?time=1446361200 (November 1st)

Sales seem to fit, 11-12 Keys should be fine.

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