Item 1

https://backpack.tf/item/7957245364

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561199026390261#!/compare/1690588800/1690675200

Buyer: https://backpack.tf/profiles/76561198345471582#!/compare/1678665600/1690675200

Item 2

https://backpack.tf/item/1804386286

Sale #2

Sold for 20 keys ([url]https://backpack.tf/item/12518603972]Keys in buyer's side match[/url])-

Seller: https://backpack.tf/profiles/76561198850274253#!/compare/1686268800/1686355200

Buyer: https://backpack.tf/profiles/76561198259772458#!/compare/1686355200/1686528000

Sale #3

Bulk sale?-

Seller: https://backpack.tf/profiles/76561198259772458#!/compare/1686528000/1686614400

Buyer: https://backpack.tf/profiles/76561198884587456#!/compare/1686441600/1686528000

Sale #4

Bulk again-

Seller: https://backpack.tf/profiles/76561198884587456#!/compare/1686528000/1686614400

Buyer: https://backpack.tf/profiles/76561198850121720#!/compare/1686441600/1686528000

Sale #5

Untraceable-

Seller: https://backpack.tf/profiles/76561198850121720#!/compare/1690416000/1690502400

Buyer: https://backpack.tf/profiles/76561199026390261#!/compare/1690675200/1690761600

Marketplace.tf Sales

https://marketplace.tf/items/tf2/30044;5;u62

MP.TF Sale #1

Sold for $50 on June 3, 2023

Keys @ $1.99

50/1.99 = 25.13ish keys

MP.TF Sale #2

Sold for $55 on July 31, 2023

Keys @ $1.95

55/1.95 = 28.21ish keys

Sales @ 20, 25, 28

Taking 20-28 here