Item 1

https://backpack.tf/item/9664989808

Sale #1

Sold for a few keys it seems like an incomplete trade however, probably sold that Smoking Boxcar for keys but traded then right away so they don't show up, unusable and untraceable-

Seller: https://backpack.tf/profiles/76561198841279602#!/compare/1685577600/1685664000

Buyer: https://backpack.tf/profiles/76561199018378002#!/compare/1685577600/1685664000

Item 2

https://backpack.tf/item/9829776255

Sale #2

Untraceable, probably gambled-

Seller: https://backpack.tf/profiles/76561198275478002#!/compare/1687046400/1687132800

Buyer: https://backpack.tf/profiles/76561199161916038#!/compare/1687046400/1687219200

Sale #3

Untraceable-

Seller: https://backpack.tf/profiles/76561199161916038#!/compare/1687305600/1687392000

Buyer: https://backpack.tf/profiles/76561199066404205#!/compare/1686182400/1687392000

Sale #4

Untraceable-

Seller: https://backpack.tf/profiles/76561199066404205#!/compare/1687392000/1687478400

Buyer: https://backpack.tf/profiles/76561198044164790#!/compare/1687392000/1687478400

Sale #5

Sold for a Starlight Haze Arctic Mole (12.5 keys) + 15 keys = 27.5 keys-

Seller: https://backpack.tf/profiles/76561198044164790#!/compare/1687392000/1687478400

Buyer: https://backpack.tf/profiles/76561198118580639#!/compare/1687392000/1687478400

Item 3

https://backpack.tf/item/10035452157

Sale #6

Sold for 20 keys (ID "13074845467" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198070497462#!/compare/1685059200/1685491200

Buyer: https://backpack.tf/profiles/76561199197624825#!/compare/1685059200/1685145600

Sale #7

Bulk transfer-

Seller: https://backpack.tf/profiles/76561199197624825#!/compare/1686700800/1686787200

Buyer: https://backpack.tf/profiles/76561197963500354#!/compare/1686700800/1686787200

Item 4

https://backpack.tf/item/12915713138

Sale #8

Untraceable-

Seller: https://backpack.tf/profiles/76561199189560763#!/compare/1685232000/1685923200

Buyer: https://backpack.tf/profiles/76561198136282930#!/compare/1684281600/1685923200

Marketplace.tf Sales

https://marketplace.tf/items/tf2/31171;5;u172

MP.TF Sale #1

Sold for $59.9 on July 21, 2023

Keys @ $1.95

59.9/1.95 = 30.72ish keys

MP.TF Sale #2

Sold for $59.9 on August 4, 2023

Keys @ $1.95

59.9/1.95 = 30.72ish keys

Sales @ 20, 28, 31, 31

Taking 28-31 here