Thanks to PlantFoodClock for the second sale, had no idea you could fetch SCM listings like that

Sale 1:

Agreed on 240 keys thru marketplace (keys at 1.69)

https://marketplace.tf/items/tf2/31143;5;u267;strange

https://backpack.tf/item/12269247099

https://imgur.com/a/VjOrtJK

Sale 2:

Got it in a bulk deal a month prior (Str. Haunted Wick Seared Sorcerer + Strange ★Cool Broken Bones Rocket Launcher (FT) for Treasure Trove Patriot Peak, which is better used on the peak

Sale 3:

$345 on steam market

https://backpack.tf/profiles/76561198042634121#!/compare/1701561600/1701648000

https://steamcommunity.com/market/listings/440/Strange%20Unusual%20Seared%20Sorcerer

https://imgur.com/DSPvh48 ($2.32 USD)

$345/$2.32 = ~149 Keys → Rounded to 150 Keys

Rest is untrace

Taking 150-240