Sale 1:

Sold with negligible metal for 8 keys

https://backpack.tf/profiles/76561199564942025#!/compare/1716595200/1716681600

https://backpack.tf/profiles/76561199151992743#!/compare/1716595200/1716681600

https://backpack.tf/item/14049392063

= 8 keys

Sale 2:

Sold for 8 keys

https://backpack.tf/profiles/76561199151992743#!/compare/1716768000/1716854400

https://backpack.tf/profiles/76561199335745616#!/compare/1716681600/1716854400

https://backpack.tf/item/14049392063

= 8 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199335745616#!/compare/1717804800/1717977600

https://backpack.tf/profiles/76561198045494837#!/compare/1717718400/1717804800

https://backpack.tf/item/14049392063

Untraceable

#2

https://backpack.tf/profiles/76561198045494837#!/compare/1717977600/1718064000

https://backpack.tf/profiles/76561199052283201#!/compare/1717718400/1718064000

https://backpack.tf/item/14049392063

Sold with 2 keys for Wandering Wisps Crabe de Chapeau

This sale would, at best, be 12 keys here, and given that they dumped to a quicksell bot afterwards, it would be better off to exclude it.

#3

https://backpack.tf/profiles/76561199052283201#!/compare/1718064000/1718150400

https://backpack.tf/profiles/76561199059698603#!/compare/1718064000/1718150400

https://backpack.tf/item/14049392063

Untraceable, some metal matches

#4

https://backpack.tf/profiles/76561199232380670#!/compare/1715990400/1716076800

https://backpack.tf/profiles/76561198850121720#!/compare/1715990400/1716076800

https://backpack.tf/item/13002206405

Bulk/untraceable

#5

https://backpack.tf/profiles/76561198328275679#!/compare/1721433600/1721779200

https://backpack.tf/profiles/76561198850178158#!/compare/1722556800/1722643200

https://backpack.tf/item/12356712051

Untraceable, missing info in history

Sellers:

https://marketplace.tf/items/tf2/31310;5;u60

https://backpack.tf/item/13110406091 - $29.99

Sales at:

8 (2x)

Taking 8 flat.