Using last month.

Sale 1:

Sold for ~11 keys in items

Seller: https://backpack.tf/profiles/76561198011321852#!/compare/1524009600/1524096000

Buyer: https://backpack.tf/profiles/76561198302590706#!/compare/1523923200/1524096000

bp says the loose cannon is ~2.5 keys, but the war paint itself is ~1 key, so taking 1 key for that.

X = 11

Sales 2 & 3:

Sold for $19.99 and $12 on marketplace.tf

https://marketplace.tf/items/30621;5;u3007

The sale at $12 will end up at quickbuyer price, so I’ll exclude that.

19.99/1.97 = ~10.1

X = 10

Sale 4:

Sold for ’72 Yeti Punch (9) + Dragon Slayer Rocket Launcher (1)

Seller: https://backpack.tf/profiles/76561198162286080#!/compare/1522972800/1523577600

Buyer: https://backpack.tf/profiles/76561198263493408#!/compare/1523577600/1523750400

X = 10

Sale 5:

Bulk for pure

Seller: https://backpack.tf/profiles/76561198094964657#!/compare/1524787200/1524873600

Buyer: https://backpack.tf/profiles/76561198061489334#!/compare/1524787200/1524873600

Sale 6:

Sold with Strange Spec. KS Shotgun for Showstopper Second Rate Sorcery

Seller: https://backpack.tf/profiles/76561198263493408#!/compare/1523836800/1524614400

Buyer: https://backpack.tf/profiles/76561198309838525#!/compare/1523750400/1523836800

Sellers:

11 keys:

https://i.imgur.com/COsGOqb.png

https://backpack.tf/item/6138039832

https://backpack.tf/item/4621281595

12 keys:

https://i.imgur.com/hMbnzav.png

https://backpack.tf/item/4751285776

13 keys:

https://i.imgur.com/huDtudd.png

https://backpack.tf/item/4276121826

https://backpack.tf/item/4444977790

https://backpack.tf/item/6343512059

Sales at:

10 (2x)

11

Going with 10-11.