Using last 3 months.

The Sale:

Sold for 10 keys

https://backpack.tf/profiles/76561198290175952#!/compare/1709424000/1709856000

https://backpack.tf/profiles/76561198988653698#!/compare/1709510400/1709856000

https://backpack.tf/item/11335037956

= 10 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199072654974#!/compare/1708992000/1709078400

https://backpack.tf/profiles/76561199085116273#!/compare/1708992000/1709078400

https://backpack.tf/item/14103157147

Untraceable

#2

https://backpack.tf/profiles/76561199059800460#!/compare/1707609600/1707696000

https://backpack.tf/profiles/76561198097373462#!/compare/1707696000/1708214400

https://backpack.tf/item/12412264825

Untraceable

#3

https://backpack.tf/profiles/76561198097373462#!/compare/1708214400/1708560000

https://backpack.tf/profiles/76561198850274253#!/compare/1708473600/1708560000

https://backpack.tf/item/12412264825

Bulk for another pooped deck

#4

https://backpack.tf/profiles/76561198341248062#!/compare/1710979200/1711152000

https://backpack.tf/profiles/76561198311498888#!/compare/1711065600/1711152000

https://backpack.tf/item/11925383166

Untraceable/Bulk. Seller may be an alt of the previous scammer in the history.

#5

https://backpack.tf/profiles/76561198311498888#!/compare/1711843200/1711929600

https://backpack.tf/profiles/76561199069442401#!/compare/1711929600/1712016000

https://backpack.tf/item/11925383166

Bulk for keys

#6

https://backpack.tf/profiles/76561198153232449#!/compare/1708905600/1708992000

https://backpack.tf/profiles/76561198026198026#!/compare/1708819200/1709078400

https://backpack.tf/item/11335037956

Bulk for either a Cauldron Bubbles Salty Dog or Frostbite Danger

#7

https://backpack.tf/profiles/76561198026198026#!/compare/1709078400/1709164800

https://backpack.tf/profiles/76561198290175952#!/compare/1708819200/1709164800

https://backpack.tf/item/11335037956

Untraceable/Bulk

https://backpack.tf/item/10719989726 - marketplace

Sellers:

https://imgur.com/a/bMQwcOi

https://backpack.tf/item/14103157147 - 10 keys

https://backpack.tf/item/10719989726 - marketplace

https://backpack.tf/item/11925383166 - marketplace

Sale at 10 keys.

Taking 10 flat.