Item 1:

https://backpack.tf/item/5195517221

Sale 1:

SCM sale

https://backpack.tf/profiles/76561198361882903#!/compare/1714435200/1715558400

https://backpack.tf/profiles/76561198114899125#!/compare/1715126400/1715472000

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https://steamcommunity.com/market/pricehistory/?appid=440&market_hash_name=Unusual%20Tough%20Stuff%20Muffs

Sales within possible sale-date = CDN$52.96 (May 9) or CDN$286.56 (May 11)

https://steamcommunity.com/market/pricehistory/?appid=440&market_hash_name=Mann%20Co.%20Supply%20Crate%20Key

Key price = CDN$2.79 (May 9) or CDN$2.83

Both sales are below buyers :/

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Item 2:

https://backpack.tf/item/5206311216

Sale 2:

Bulk for It's A Secret To Everybody Sergeant's Drill Hat

https://backpack.tf/profiles/76561198070630154#!/compare/1715472000/1715558400

https://backpack.tf/profiles/76561198285371555#!/compare/1715472000/1715558400

Sale 3:

Bulk for Demonflame Furious Fukaamigasa

https://backpack.tf/profiles/76561198285371555#!/compare/1715558400/1715644800

https://backpack.tf/profiles/76561198872222015#!/compare/1715472000/1715644800

Sale 4:

Sold alongside 34 Keys for a Roboactive Bone Dome?

No useable sales on Bone Dome

https://backpack.tf/profiles/76561198872222015#!/compare/1715472000/1715644800

https://backpack.tf/profiles/76561198400207211#!/compare/1715385600/1715644800

Sale 5:

Sold alongside 5 keys for Power Surge Troublemaker's Tossle Cap (84) +Green Energy Caribou Companion (67.5) = 147 Keys

https://backpack.tf/profiles/76561198400207211#!/compare/1715731200/1715817600

https://backpack.tf/profiles/76561198164911027#!/compare/1715731200/1715817600

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Item 3:

https://backpack.tf/item/5228684019

Sale 6:

https://marketplace.tf/items/tf2/984;5;u108

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

$279.99/$1.64 = ~171 → Rounding to 170 Keys (Jun 18)

Sale 7:

Sold for Purple Energy Trophy Belt (170)

https://backpack.tf/profiles/76561198266724619#!/compare/1719273600/1719360000

https://backpack.tf/profiles/76561198859721638#!/compare/1719273600/1719360000

Sale 8:

Untraceable (54 Keys bulk likely match but also incomplete)

https://backpack.tf/profiles/76561198859721638#!/compare/1719273600/1719360000

https://backpack.tf/profiles/76561198051159272#!/compare/1719273600/1719360000

Sale 9:

Sold for 158 Keys (Unusual ID: "14618614812")

https://backpack.tf/profiles/76561198977721610#!/compare/1719273600/1719360000

https://backpack.tf/profiles/76561198051159272#!/compare/1719273600/1719360000

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Total Sales

147, 158, 170, 170

https://imgur.com/KW8LU4L

147 is below buy orders

Taking 158 - 170 Keys

Unsolds:

https://backpack.tf/item/5208624170 - 219

https://backpack.tf/item/5206311216 - 219

https://backpack.tf/item/5228684019 - 220

https://backpack.tf/item/5195517221 - 220

https://backpack.tf/item/5186772434 - $279.99

https://backpack.tf/item/5185943138 - $279.99

https://backpack.tf/item/5214676467 - $279.99