Mini for knifestorm brainiac

Item 1: https://backpack.tf/item/4322856692

Sale 1: https://mannco.store/item/440-nether-trail-unusual-prehistoric-pullover

$400 / $1.68 = 238.10 keys

Sale 2: https://backpack.tf/profiles/76561198066220061#!/compare/1643500800/1643587200

https://backpack.tf/profiles/76561198841365001#!/compare/1643587200/1643500800

Untraceable, most likely a cash trade

Sale 3: https://backpack.tf/profiles/76561198057897812#!/compare/1643500800/1643587200

https://backpack.tf/profiles/76561198066220061#!/compare/1643500800/1643587200

Untraceable

Sale 4: https://backpack.tf/profiles/76561198057897812#!/compare/1649548800/1649635200

https://backpack.tf/profiles/76561198057897812#!/compare/1649548800/1649635200

Sold for 190

Item 2: https://backpack.tf/item/4286899548

Sale 5: https://backpack.tf/profiles/76561198134940086#!/compare/1641427200/1643068800

Sold for 160

Item 3: https://backpack.tf/item/4260212667

Lots of gambler histories on this, only a few valid sales

Sale 6: https://backpack.tf/profiles/76561198253093948#!/compare/1640908800/1640995200

https://backpack.tf/profiles/76561198311498888#!/compare/1640995200/1641081600

Untraceable

Sale 7: https://backpack.tf/profiles/76561198131512154#!/compare/1642636800/1644624000

https://backpack.tf/profiles/76561198311498888#!/compare/1644624000/1644710400

Untraceable

Item 4: https://backpack.tf/item/4684412110

Sale 8: https://backpack.tf/profiles/76561198273241552#!/compare/1650499200/1650585600

https://backpack.tf/profiles/76561198139171368#!/compare/1650412800/1650499200

Used for ks brainiac

Item 5: https://backpack.tf/item/6748840388

Sale 9: https://backpack.tf/profiles/76561198021458180#!/compare/1641340800/1641427200

https://backpack.tf/profiles/76561198263190057#!/compare/1641168000/1641427200

Sold for 185

Sales: 160, 185, 190, 238

Since the hat has crossed the 200 keys range, after rounding it up I'm going for 160-240 keys range.