Time to update this... thing...

Sale 1:

Sold for 9 keys

https://backpack.tf/profiles/76561198194948921#!/compare/1523404800/1523491200

https://backpack.tf/profiles/76561198067055238#!/compare/1523404800/1523491200

Sale 2:

Sold for a Pro KS Grenade Launcher Kit Fabricator + Midnight Whirlwind Taunt: The Yeti Punch (6 keys)

https://backpack.tf/profiles/76561198067055238#!/compare/1523491200/1523577600

https://backpack.tf/profiles/76561198390122058#!/compare/1523404800/1523577600

Taking 6 keys for the Fabricator (no sellers, buy orders at 6) and 6 for the Taunt = 12 keys

Sale 3 = invalid

https://backpack.tf/profiles/76561198443498224#!/compare/1522540800/1523664000

https://backpack.tf/profiles/76561198390122058#!/compare/1523577600/1523750400

Untraceable.

Sale 4

Sold for a Pro KS Festive Huntsman (9.75 = 10 keys)

https://backpack.tf/profiles/76561198443498224#!/compare/1523664000/1523750400

https://backpack.tf/profiles/76561198161385078#!/compare/1523664000/1523750400

Sellers/Buyers: https://imgur.com/a/HMIpfq0

Unsold at 11 keys for a month.

Buyers as high as 8.8 keys.

Sales: 9 / 10 / 12

Excluding 9 because it's definitely a Quicksell as it's very close to buyers.

Excluding 12 due to the unsold at 11.

Taking 10 keys flat.