Sale 1:

Sold for 11 keys

Seller: https://backpack.tf/profiles/76561198068910184#!/compare/1553731200/1553817600

Buyer: https://backpack.tf/profiles/76561198120574762#!/compare/1551916800/1553817600

https://backpack.tf/item/7287913147

X = 11

Sale 2:

Sold for 10 keys

Seller: https://backpack.tf/profiles/76561198298979151#!/compare/1552262400/1553558400

Buyer: https://backpack.tf/profiles/76561198096158123#!/compare/1553472000/1553558400

https://backpack.tf/item/7287913147

X = 10

Sale 3:

Sold for 9 keys

Seller: https://backpack.tf/profiles/76561198400192243#!/compare/1553644800/1553731200

Buyer: https://backpack.tf/profiles/76561198068910184#!/compare/1553644800/1553731200

https://backpack.tf/item/7287913147

X = 9

Other Sales:

https://backpack.tf/item/7287913147 (#1 & #2)

#1

Bulk for Scorching Burning Question

https://backpack.tf/profiles/76561198255263276#!/compare/1553040000/1553126400

https://backpack.tf/profiles/76561198130834456#!/compare/1553040000/1553126400

#2

Bulk for Beams Universal Translator

https://backpack.tf/profiles/76561198130834456#!/compare/1553126400/1553212800

https://backpack.tf/profiles/76561198139656272#!/compare/1553126400/1553212800

#3

Sold for spelled stuff

https://backpack.tf/profiles/76561198139656272#!/compare/1553472000/1553558400

https://backpack.tf/profiles/76561198298979151#!/compare/1552262400/1553558400

#4

Untraceable

https://backpack.tf/profiles/76561198096158123#!/compare/1553472000/1553558400

https://backpack.tf/profiles/76561198400192243#!/compare/1553472000/1553558400

Sellers:

https://i.imgur.com/cZ0Cosl.png

https://backpack.tf/item/942828813 - 14 keys

Sales at:

9

10

11

Most of these sales (if not all) “quicksold”, but we don’t have any other sales to work with. Not excluding anything based off how fast it sold here.

Going with 9-11.