New sales:

https://backpack.tf/item/205009103 https://marketplace.tf/items/tf2/110;5;u19

$450 / $1.90 = 239 keys

Buyout was 180 keys https://gladiator.tf/listings/60d94210b0acb4e868d659cc

https://backpack.tf/profiles/76561199102199351#!/compare/1625616000/1625702400 - Untrace

https://backpack.tf/profiles/76561199102199351#!/compare/1625529600/1625616000

https://backpack.tf/profiles/76561198972047944#!/compare/1625529600/1625616000 - Upgrade to C9 Yellow Belt, maybe better used there given "pure" sales here

https://backpack.tf/profiles/76561198024486517#!/compare/1621987200/1622160000

https://backpack.tf/profiles/76561199102407070#!/compare/1622073600/1622160000 - buy order

Another mp.tf sale too

https://marketplace.tf/items/tf2/110;5;u19

$375 / $1.90 = 197 keys

At the time of this sale, sellers were at 179/180 keys but no trace that it capped

Either way, this will probably be better suited to180-200 keys