Sale #1:

https://backpack.tf/item/15988944029

https://backpack.tf/profiles/76561198202209948#!/compare/1757203200/1764115200 ~ no matches

https://backpack.tf/profiles/76561198882175555#!/compare/1758758400/1760227200 ~ cannot for the life of me find the buyer compare date

Sale #2:

https://backpack.tf/item/13639385276

https://backpack.tf/profiles/76561198111757157#!/compare/1758931200/1764115200

https://backpack.tf/profiles/76561197999173629#!/compare/1763942400/1764115200 ~ 7 keys

https://scrap.tf/auctions/QF7DDQ ~ further proof

Sale #3:

https://backpack.tf/item/16145113649

https://backpack.tf/profiles/76561199089805691#!/compare/1757635200/1757894400 ~ 30 keys matches

https://backpack.tf/profiles/76561199564942025#!/compare/1757808000/1757894400 ~ cant see it on buyer side

Sale #4:

https://backpack.tf/profiles/76561199564942025#!/compare/1757808000/1757894400 ~ 9 keys match

https://backpack.tf/profiles/76561198070980833#!/compare/1757894400/1757980800

Sale #5:

https://backpack.tf/profiles/76561198070980833#!/compare/1759104000/1759190400 ~ bulk for a lost signal mannrobics

https://backpack.tf/profiles/76561198311498888#!/compare/1759017600/1759104000

Sale #6:

https://backpack.tf/profiles/76561198311498888#!/compare/1759276800/1759363200 ~ 9 keys match

https://backpack.tf/profiles/76561198022776135#!/compare/1759276800/1759363200

Sale #7:

https://backpack.tf/item/15227442100

https://backpack.tf/profiles/76561198406138209#!/compare/1761782400/1761868800 ~ some of the 25 keys come from scrap.tf

https://backpack.tf/profiles/76561198104638778#!/compare/1761868800/1761955200 ~ no matches

Sale #8 and #9:

https://marketplace.tf/items/tf2/31380;5;u3200

Aug 31, 2025 49.99/1.8 ~27.77 keys

Oct 24, 2025 29.99/1.84 ~16.29 keys

Sales @ 7, 9, 9, 16, 25(?), 28, 30(?)

x1 Seller (under a week old) at 15.

STN buys for over 7 keys >>>> https://ibb.co/RF7dsQp

So taking 9-16.