Sellers:

http://www.tf2outpost.com/trade/29177101 - b/o: 10 keys (3 months)

http://www.tf2outpost.com/trade/28873365 - b/o: 11 keys (1 month)

Sold:

http://backpack.tf/profiles/76561198012525074#!/compare/1411110000/1495929600

http://backpack.tf/profiles/76561198009338549#!/compare/1495929600/1496016000 - ?

http://www.tf2outpost.com/trade/29195426

http://backpack.tf/profiles/76561198002757046#!/compare/1495843200/1495929600 - sold for Strange Professional Killstreak Blood Botkiller Sniper Rifle Mk.I (8) + 1 key = 9 keys

http://www.tf2outpost.com/trade/29194341

http://backpack.tf/profiles/76561198059842474#!/compare/1495411200/1495497600

http://backpack.tf/profiles/76561198002757046#!/compare/1495324800/1495411200 - bulk

http://www.tf2outpost.com/trade/29189006

http://backpack.tf/profiles/76561198101029063#!/compare/1495152000/1495238400 - sold with 4 keys for Purple Confetti German Gonzila = 8 keys (low)

http://backpack.tf/profiles/76561198304138933#!/compare/1494806400/1494892800 - ?

http://backpack.tf/profiles/76561198205939253#!/compare/1493164800/1493251200 - sold for 8 keys (quicksold)

Mini’s:

Purple Confetti German Gonzila:

http://backpack.tf/suggestion/593084140e2cad4c8e1390a4 = 12 keys

Conclusion:

sale at 8, 8, 9

taking 9 keys