Item 1

https://backpack.tf/item/3345972589

Sale #1

Sold for 35 keys (keys in buyer's side match)-

Seller: https://backpack.tf/profiles/76561199372351772#!/compare/1683936000/1684195200

Buyer: https://backpack.tf/profiles/76561198044882698#!/compare/1684195200/1684713600

Item 2

https://backpack.tf/item/3457744563

Sale #2

Bulk transfer?-

Seller: https://backpack.tf/profiles/76561199218231854#!/compare/1686700800/1686787200

Buyer: https://backpack.tf/profiles/76561198062420532#!/compare/1686528000/1686873600

Item 3

https://backpack.tf/item/3495463106

Sale #3

Untraceable-

Seller: https://backpack.tf/profiles/76561198041030261#!/compare/1671321600/1685664000

Buyer: https://backpack.tf/profiles/76561198008181262#!/compare/1669507200/1686355200

Marketplace.tf Sales

https://marketplace.tf/items/tf2/617;5;u58

MP.TF Sale #1

Sold for $89.99 on July 20, 2023

Keys @ $1.95

89.99/1.95 = 46.15ish keys

MP.TF Sale #2

Sold for $95 on August 2, 2023

Keys @ $1.95

95/1.95 = 48.72ish keys

Sales @ 35, 46, 49

Taking 35 flat