Histories 1-4:

https://backpack.tf/item/9336008067

https://backpack.tf/item/9382081874

https://backpack.tf/item/9922073554

https://backpack.tf/item/9299752885

https://marketplace.tf/items/tf2/31129;5;u156

$28.99 / $1.74 = 16.66 keys ~17 keys

$28.49 / $1.74 = 16.37 keys ~16 keys

$28.49 / $1.74 = 16.37 keys ~16 keys

$31.99 / $1.74 = 18.39 keys ~18 keys

History 5: https://backpack.tf/item/9474764531

Untrace:

https://backpack.tf/profiles/76561198379718122#!/compare/1649808000/1649894400

https://backpack.tf/profiles/76561198179583250#!/compare/1649808000/1649894400

Listed on Manco.Store at $26.99 https://mannco.store/item/29767

History 6: https://backpack.tf/item/9366850966

Untrace:

https://backpack.tf/profiles/76561198121847456#!/compare/1646352000/1646438400

https://backpack.tf/profiles/76561198994008246#!/compare/1646352000/1646438400

Untrace/Dumped:

https://backpack.tf/profiles/76561198994008246#!/compare/1646352000/1646438400

https://backpack.tf/profiles/76561198453530349#!/compare/1646352000/1646438400

Untrace:

https://backpack.tf/profiles/76561198453530349#!/compare/1646956800/1647043200

https://backpack.tf/profiles/76561198203778081#!/compare/1646956800/1647043200

Untrace/Dumped:

https://backpack.tf/profiles/76561198203778081#!/compare/1647129600/1647043200

https://backpack.tf/profiles/76561199111073161#!/compare/1647129600/1647043200

Untrace:

https://backpack.tf/profiles/76561199111073161#!/compare/1648425600/1648512000

https://backpack.tf/profiles/76561198972605432#!/compare/1645920000/1648512000

Buyout was ~17.5 keys https://gladiator.tf/listings/6240349ff3a2078a53209713

Sales at 16, 16, 17, 18

Unsold at 16.44 keys for <1 day https://backpack.tf/item/9922073554

Taking 16-18 keys here