Item 1

https://backpack.tf/item/12961511207

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198164814063#!/compare/1684540800/1684886400

Buyer: https://backpack.tf/profiles/76561198387894361#!/compare/1684540800/1684713600

Item 2

https://backpack.tf/item/12001816001

Sale #2

Sold for 20 keys (ID "13103544092" of the unusual match)-

Seller: https://backpack.tf/profiles/76561198850121720#!/compare/1685664000/1685750400

Buyer: https://backpack.tf/profiles/76561198060201259#!/compare/1677283200/1691020800

Item 3

https://backpack.tf/item/11930682145

Sale #3

Sold for a bunch of items (16.63ish keys, match ID "13150421456" of the unusual to see the items. Took buy orders for all of them except the Strange Canteen, went with sell orders on mp.tf and divided by today's key prices, $1.97)-

Seller: https://backpack.tf/profiles/76561199059698603#!/compare/1686700800/1686787200

Buyer: https://backpack.tf/profiles/76561198868952224#!/compare/1686787200/1687910400

Item 4

https://backpack.tf/item/11925099639#

Only one sale at the end here given that the one guy bought from a quicksell store bot and then sold it to another one

Sale #4

Untraceable-

Seller: https://backpack.tf/profiles/76561198850178158#!/compare/1691280000/1691366400

Buyer: https://backpack.tf/profiles/76561198084894553#!/compare/1679875200/1691625600

Marketplace.tf Sales

https://marketplace.tf/items/tf2/31271;5;u255

MP.TF Sale #1

Sold for $34.95 on July 25, 2023

Keys @ $1.95

34.95/1.95 = 17.92ish keys

MP.TF Sale #2

Sold for $39.95 on August 6, 2023

Keys @ $2.01

39.95/2.01 = 19.88ish keys

Sales @ 17, 18, 20, 20

Taking 17-20 here