Item 1:

https://backpack.tf/item/5187905113

Sale 1:

Untraceable/Bulk

https://backpack.tf/profiles/76561199522320441#!/compare/1723766400/1723852800

https://backpack.tf/profiles/76561198145331385#!/compare/1723766400/1723852800

Sale 2:

Sold for 44 Keys (Unusual ID: "14859374198")

https://backpack.tf/profiles/76561199177132803#!/compare/1725062400/1725148800

https://backpack.tf/profiles/76561198117396084#!/compare/1724284800/1725148800

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Item 2:

https://backpack.tf/item/5203546680

Sale 3:

Bulk for Death at Dusk Slo-Poke

https://backpack.tf/profiles/76561198134561245#!/compare/1723680000/1723852800

https://backpack.tf/profiles/76561199073805105#!/compare/1723766400/1723852800

Sale 4:

Only metal traceable

https://backpack.tf/profiles/76561199073805105#!/compare/1724025600/1724112000

https://backpack.tf/profiles/76561199581722058#!/compare/1724025600/1724112000

Sale 5:

Sold for 40 Keys

https://backpack.tf/item/4693711161 (Keys ID: "14935081097")

https://backpack.tf/profiles/76561199581722058#!/compare/1726963200/1727049600

https://backpack.tf/profiles/76561198091064029#!/compare/1727049600/1727308800

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Item 3:

https://backpack.tf/item/5187096051

Sale 6:

Bulk for Knifestorm Brim-Full of Bullets

https://backpack.tf/profiles/76561198208582767#!/compare/1722729600/1722816000

https://backpack.tf/profiles/76561198285371555#!/compare/1722729600/1722816000

Sale 7:

Bulk for Arcana Firewall Helmet

https://backpack.tf/profiles/76561198285371555#!/compare/1722902400/1722988800

https://backpack.tf/profiles/76561198063640894#!/compare/1722902400/1722988800

Sale 8:

https://marketplace.tf/items/tf2/30069;5;u109

https://marketplace.tf/items/tf2/5021;6

$89.99/$1.84 = ~49 Keys (Aug 24)

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Item 4:

https://backpack.tf/item/5200102955 - Listed on Mannco

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Total Sales

40, 44, 49

https://imgur.com/6LBXZwe

Taking 40 - 49 Keys