Item 1:

https://backpack.tf/item/436123801

Sale 1:

Sold for 142 Keys (Unusual ID: "15208956566")

https://backpack.tf/profiles/76561198018177887#!/compare/1731801600/1733529600

https://backpack.tf/profiles/76561198061440669#!/compare/1733270400/1733529600

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Item 2:

https://backpack.tf/item/1532535784

Sale 2:

Sold for 190 Keys + Strange Delldozer (~1 key)

https://backpack.tf/profiles/76561198070534436#!/compare/1733184000/1734480000

https://backpack.tf/profiles/76561198380628122#!/compare/1734480000/1734566400

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Item 3:

https://backpack.tf/item/511974134

Sale 3

Sold for 180 Keys (Unusual ID: "15099578625")

https://backpack.tf/profiles/76561198283298105#!/compare/1730419200/1730678400

https://backpack.tf/profiles/76561198070534436#!/compare/1730592000/1730678400

Sale 4:

Sold for Strange Scorching Flames Pithy Professional + Hot Professional Killstreak Polar Surprise Soda Popper (Battle Scarred)

https://backpack.tf/profiles/76561198261483133#!/compare/1732665600/1732752000

https://backpack.tf/profiles/76561198942593332#!/compare/1732665600/1732752000

Sale 5:

Incomplete compare (~51 Keys traceable)

https://backpack.tf/profiles/76561198942593332#!/compare/1734393600/1734480000

https://backpack.tf/profiles/76561198311498888#!/compare/1734393600/1734480000

Sale 6:

Incomplete compare (37 keys traceable)

https://backpack.tf/profiles/76561198311498888#!/compare/1734393600/1734480000

https://backpack.tf/profiles/76561198385727483#!/compare/1734393600/1734480000

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Item 4 + 5:

https://backpack.tf/item/1081412556 — Duped history; no sales

https://backpack.tf/item/481547122 — Duped history; no sales

//

Item 6:

https://backpack.tf/item/1028994109

Sale 7:

Bulk for Poisoned Shadows Spook Specs

https://backpack.tf/profiles/76561198087127437#!/compare/1733616000/1733702400

https://backpack.tf/profiles/76561198054912875#!/compare/1733616000/1733788800

Sale 8:

Bulk for Eerie Orbiting Fire Mining Light

https://backpack.tf/profiles/76561198054912875#!/compare/1734134400/1734220800

https://backpack.tf/profiles/76561198056722170#!/compare/1734048000/1734220800

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Marketplace.TF Sales

https://marketplace.tf/items/tf2/110;5;u33

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

Sale 9:

$400/1.78 = ~225 Keys (Dec 24)

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Total Sales

142, 180, 190, 225

https://imgur.com/rQrfLTJ

Excluding 142 as low (given STN is buying for ~136).

Taking 180 - 225 Keys

Unsolds:

https://backpack.tf/item/511974134 — 250

https://backpack.tf/item/436123801 — 250