Recent sales:

Sale 1:

Bought for $80 on marketplace.tf

80/1.77 = 45.19, down to 45 keys

https://marketplace.tf/items/tf2/158;5;u39

Sale 2:

Bought for 40 keys

https://backpack.tf/profiles/76561198083415313#!/compare/1651536000/1651708800

Third sale:

Can't find anything on it, also involves someone recently banned for being a brokerer for scammers, gonna take it that it wouldn't be usable

https://backpack.tf/item/1231336576

Fourth sale:

I think its bulk for the GBH Tam O' Shanter? Probably better for that since its outdated. Also just over 3 months old so probably not usable regardless https://backpack.tf/profiles/76561198843683108#!/compare/1644710400/1644883200

Going with 40-45 keys