Sale 1:

Sold for Bubbling Ceremonial + 2 keys + 3 ref

http://www.tf2outpost.com/trade/28177123 - B/O of 13

Seller: http://backpack.tf/profiles/76561198119629032#!/compare/1464134400/1464307200

Buyer: http://backpack.tf/profiles/76561198269304492#!/compare/1464134400/1464393600

X = 12

Sale 2:

Quicksold for 10 keys

http://www.tf2outpost.com/trade/28284619 - B/O of 10

Seller: http://backpack.tf/profiles/76561198113404155#!/compare/1466726400/1466812800

Buyer: http://backpack.tf/profiles/76561198135855519#!/compare/1466726400/1466812800

X = 10

Sale 3:

Sold with a key for Terror-Watt Ceremonial

Seller: http://backpack.tf/profiles/76561198269304492#!/compare/1466726400/1466812800

Buyer: http://backpack.tf/profiles/76561198113404155#!/compare/1466726400/1466812800

Should be used to update the Terror-Watt Ceremonial

Sale 4:

Sold with 5 keys for Terror-Watt Voodoo JuJu

Seller: http://backpack.tf/profiles/76561198058439292#!/compare/1465603200/1465689600

Buyer: http://backpack.tf/profiles/76561198002186909#!/compare/1465603200/1465689600

Should be used to update the JuJu

Sellers:

11 keys:

http://puu.sh/pLgNg/cedac7325d.png - 10 days

http://www.tf2outpost.com/trade/28285734 - 4 days

13 keys:

http://www.tf2outpost.com/trade/28237790 - 3 weeks

30 keys:

http://www.tf2outpost.com/trade/24996432 - 1 year

Offers:

http://www.tf2outpost.com/trade/28289491

Sales at:

10

12

10 sold too quickly to be included in the range

Sellers at 11, sale at 12

Going with 11-12