Sale #1

https://marketplace.tf/items/tf2/30866;5;u29

Marketplace.tf sale on 5/13/25

$39.99 / $1.94 (median value at the time) = 20.6

Rounding to 21

Sale #2

https://marketplace.tf/items/tf2/30866;5;u29

https://backpack.tf/item/12165108061

Marketplace.tf sale on 3/11/25

$39.99 / $1.84 (median value at the time) = 21.7

Rounding to 22

Sale #3

https://backpack.tf/item/15668746218

19 keys

Seller: https://backpack.tf/profiles/76561199195033718#!/compare/1745971200/1746057600 (ID: 15693521290)

Buyer: https://backpack.tf/profiles/76561199072654974#!/compare/1746057600/1746057600/nearest

Sale #4

https://backpack.tf/item/15548919603

Untraceable

https://backpack.tf/profiles/76561199652290612#!/compare/1741910400/1742083200

Sale #5

https://backpack.tf/item/15548919603

Untraceable

https://backpack.tf/profiles/76561199004803157#!/compare/1745971200/1746057600

Sale #6

https://backpack.tf/item/15515976070

Untraceable

https://backpack.tf/profiles/76561198980494183#!/compare/1742688000/1744156800

Sale #7 (gladiator.tf)

https://backpack.tf/item/15515976070

18 keys 66.66 ref

Seller: https://backpack.tf/profiles/76561198311498888#!/compare/1744588800/1744675200

Buyer: https://backpack.tf/profiles/76561198089411346#!/compare/1744588800/1744675200

Rounding to 19

Sale #8

https://backpack.tf/item/15515976070

Untraceable

https://backpack.tf/profiles/76561198089411346#!/compare/1744675200/1745625600

Sale #9

https://backpack.tf/item/14040772187

BP sale?

https://backpack.tf/profiles/76561198211858204#!/compare/1747094400/1747526400

Sale #10

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561199043177646#!/compare/1741219200/1741305600

Sale #11

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561198302376251#!/compare/1741219200/1741305600

Sale #12

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561198874854067#!/compare/1741132800/1741305600

Sale #13

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561199652290612#!/compare/1741219200/1741305600

Sale #14

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561198138656485#!/compare/1742774400/1744761600

Sale #14

https://backpack.tf/item/11895083728

Untraceable

https://backpack.tf/profiles/76561198186297679#!/compare/1742601600/1743552000

Sale #15

https://backpack.tf/item/7716382009

Quicksold to bots, keys immediately reused elsewhere

https://backpack.tf/profiles/76561199149744753#!/compare/1741478400/1742774400

Sale #16

https://backpack.tf/item/5795016654

Untraceable

https://backpack.tf/profiles/76561198850178158#!/compare/1740614400/1740700800

Sale #17

https://backpack.tf/item/5795016654

19 keys 30.44 ref

Seller: https://backpack.tf/profiles/76561198179607307#!/compare/1741046400/1741305600 (ID: 15510452625)

Buyer: https://backpack.tf/profiles/76561199581722058#!/compare/1741046400/1741046400/nearest

Rounding to 19

Sale #18 (gladiator.tf)

https://backpack.tf/item/5795016654

18 keys 71.55 ref

Seller: https://backpack.tf/profiles/76561199581722058#!/compare/1741651200/1741737600

Buyer: https://backpack.tf/profiles/76561199004803157#!/compare/1741651200/1741737600

Rounding to 19

Sale #19

https://backpack.tf/item/5795016654

Untraceable

https://backpack.tf/profiles/76561199125443371#!/compare/1746057600/1746230400

Gladiator.tf sales not found on bp.tf:

19 keys 36.22 ref (rounding to 20)

20 keys 21.33 ref (rounding to 20)

Gladiator.tf link: https://gladiator.tf/sales?item=Stormy%20Storm%20Warhood&at=2025-05-22T06:29:21.921Z

Current sellers:

20.43 on bp.tf (4x)

20.45 on bp.tf

$80.00 on mannco.store

Sales: 21, 22, 19, 19, 19, 19, 20, 20

Using this range as suggested by Mindacos

Final price: 19 - 21