I was right the first time, apologies for closing this so much!

Item 1

https://backpack.tf/item/8421348881

Sale #1

Sold for 73 keys (buyer's side)

Seller: https://backpack.tf/profiles/76561198033165804#!/compare/1683763200/1683849600

Buyer: https://backpack.tf/profiles/76561198033165804#!/compare/1683763200/1683849600

Sale #2

Sold for 85 keys (ID "13138384606" in the unusual traces)-

Seller: https://backpack.tf/profiles/76561198033165804#!/compare/1685923200/1686528000

Buyer: https://backpack.tf/profiles/76561199336023168#!/compare/1685577600/1686528000

Item 2

https://backpack.tf/item/8457110994

Sale #3

Untraceable-

Seller: https://backpack.tf/profiles/76561199085116273#!/compare/1683504000/1683590400

Buyer: https://backpack.tf/profiles/76561198316071886#!/compare/1683417600/1683590400

Sale #4

Transfer from owner to bot-

Seller: https://backpack.tf/profiles/76561198316071886#!/compare/1684540800/1684627200

Buyer: https://backpack.tf/profiles/76561199389182144#!/compare/1684540800/1684627200

MP.TF Sale #1

Sold for $200 on May 24, 2023

Keys @ $2

200/2 = 100 keys

https://marketplace.tf/items/tf2/31091;5;u13

Sales @ 73, 85. 100

Taking 73-100 here