Sale 1: Bulk

https://backpack.tf/profiles/76561198315518927#!/compare/1493942400/1494460800

Sale 2: Sold for Steaming Swagman's Swatter (13.5); rounding to 14

https://backpack.tf/profiles/76561198317672929#!/compare/1497571200/1497657600

Sale 3 Untraceable

https://backpack.tf/profiles/76561198335309460#!/compare/1497744000/1497830400

Sale 4: 10 keys pure

https://backpack.tf/profiles/76561198087328383#!/compare/1497484800/1497830400

Sale 5: Sold together with Schadenfreude (0.75) for Ace High Milkman (15) --> 14.25; rounding to 14

https://backpack.tf/profiles/76561198195158563#!/compare/1499126400/1499212800

Sale 6: Sold together with ~2.6 keys in items for Searing Plasma Coupe Disaster (11) --> 8.4; rounding to 8 keys

https://backpack.tf/profiles/76561198069559160#!/compare/1498867200/1498953600

Buyers at 8.X http://i.imgur.com/h4b3NzX.png --> sales at 10, 14, 14

Sellers at 12

Suggesting range from 10-14