This is a mess

$52.49 / $1.83 = 28.68 keys

sold for 52.49 twice

https://marketplace.tf/items/tf2/30394;5;u56

https://manic.tf/keyprice/?site=marketplace.tf&at=2022-01-21&price=52.49

https://manic.tf/keyprice/?site=marketplace.tf&at=2022-01-15&price=52.49…

It does count -

https://backpack.tf/profiles/76561199175179985#!/compare/1648339200/1648425600

https://backpack.tf/profiles/76561198402439907#!/compare/1647907200/1648339200 - Sold for 25 keys (no evidence that it quicksold)

Other new sales:

https://backpack.tf/profiles/76561198111764036#!/compare/1648425600/1648684800

https://backpack.tf/profiles/76561198069129341#!/compare/1648771200/1650412800 - SCM

https://backpack.tf/profiles/76561198139679163#!/compare/1650758400/1650844800

https://backpack.tf/profiles/76561198285155157#!/compare/1648944000/1650844800 - Sold with <0.5 keys of ref for 24 keys = 24 keys

Since we have 2 new sales at 24/25 keys, I think 24-29 would be the best way to go here.

New sale also:

https://backpack.tf/profiles/76561198143030852#!/compare/1652227200/1652313600

https://backpack.tf/profiles/76561198064724507#!/compare/1652227200/1652313600 - Better used there

Lemons and Tf3 did all the work credit to them