Impossible Challenge

[b][u]Item 1[/b][/u]
https://backpack.tf/item/11839398938

[b]Sale #1[/b]
Untraceable?-
Seller: https://backpack.tf/profiles/76561199059698603#!/compare/1691625600/1691712000
Buyer: https://backpack.tf/profiles/76561198091502579#!/compare/1691193600/1691712000

[b][u]Item 2[/b][/u]
https://backpack.tf/item/8705911679

[b]Sale #2[/b]
Untraceable-
Seller: https://backpack.tf/profiles/76561198211888721#!/compare/1650067200/1691712000
Buyer: https://backpack.tf/profiles/76561198337734785#!/compare/1691625600/1691884800

[b][u]Item 3[/b][/u]
https://backpack.tf/item/4429777156

[b]Sale #3[/b]
Sold for 93 keys + 69.55 refined (buyer's side)-
Seller: https://backpack.tf/profiles/76561198311498888#!/compare/1686528000/1686614400
Buyer: https://backpack.tf/profiles/76561198277576524#!/compare/1686441600/1686700800

[b][u]Item 4[/b][/u]
https://backpack.tf/item/12989697036

[b]Sale #4[/b]