Using last 2 months.

Sale 1:

Sold with negligible metal for 4 keys

https://backpack.tf/profiles/76561199057187154#!/compare/1701993600/1702080000

https://backpack.tf/profiles/76561199563147227#!/compare/1701216000/1702166400

https://backpack.tf/item/13843250416

= 4 keys

Sale 2:

Sold for 4 keys

https://backpack.tf/profiles/76561199026390261#!/compare/1701475200/1701561600

https://backpack.tf/profiles/76561199159314952#!/compare/1701388800/1701561600

https://backpack.tf/item/11801527475

= 4 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199015005215#!/compare/1701216000/1701993600

https://backpack.tf/profiles/76561199057187154#!/compare/1701561600/1701648000

https://backpack.tf/item/13843250416

Untraceable

#2

https://backpack.tf/profiles/76561198082188649#!/compare/1703116800/1703289600

https://backpack.tf/profiles/76561198320548813#!/compare/1661472000/1703289600

https://backpack.tf/item/9684881489

Sold for a Burstchester? Pretty high if so.

https://backpack.tf/item/9661163191 - bot transfer

Marketplace Sales:

https://marketplace.tf/items/tf2/30919;5;u3003

$11.44, January 6th

This'll end up being at least 6 keys. Excluding.

Sellers:

https://imgur.com/a/yRDtaqM

https://backpack.tf/item/13591231058 - 4 keys

https://backpack.tf/item/9661163191 - marketplace

https://backpack.tf/item/6491422482 - marketplace

https://backpack.tf/item/6713723319 - marketplace

https://backpack.tf/item/7437471262 - marketplace

https://backpack.tf/item/11128205589 - marketplace

2 sales at 4.

Taking 4 flat.

https://backpack.tf/profiles/76561198198896481#!/compare/1705449600/1705536000

https://backpack.tf/profiles/76561198171558113#!/compare/1705449600/1705536000

https://backpack.tf/item/10565207276

Sold for Midnight Whirlwind Skating Scorcher (oudated, buyers at ~2.6 keys) + Rock, Paper, Scissors (~1.8)

https://imgur.com/a/yRDtaqM - B/O of 4 keys. Caps at 4.