Item 1

https://backpack.tf/item/12999869206

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198113992461#!/compare/1684368000/1684540800

Buyer: https://backpack.tf/profiles/76561199315621199#!/compare/1684454400/1684540800

Sale #2

Untraceable-

Seller: https://backpack.tf/profiles/76561199315621199#!/compare/1685491200/1685923200

Buyer: https://backpack.tf/profiles/76561198260467278#!/compare/1685577600/1686009600

Item 2

https://backpack.tf/item/12886042547

Sale #3

Bulk transfer?-

Seller: https://backpack.tf/profiles/76561199128560410#!/compare/1686700800/1686787200

Buyer: https://backpack.tf/profiles/76561199069442401#!/compare/1686614400/1686787200

Item 3

https://backpack.tf/item/11997346044

Sale #4

Bulk transfer-

Seller: https://backpack.tf/profiles/76561199107865875#!/compare/1686700800/1686787200

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

Sale #5

Untraceable-

Seller: https://backpack.tf/profiles/76561197963500354#!/compare/1688342400/1688428800

Buyer: https://backpack.tf/profiles/76561198094784652#!/compare/1684627200/1688774400

Marketplace.tf Sales

https://marketplace.tf/items/tf2/31282;5;u247

MP.TF Sale #1

Sold for $34.99 on June 7, 2023

Keys @ $1.99

34.99/1.99 = 17.58ish keys

MP.TF Sale #2

Sold for $59.99 on July 21, 2023

Keys @ $1.95

59.99/1.95 = 30.76ish keys

Sales @ 18, 31

Taking 18-31