-65 keys pure: https://backpack.tf/profiles/76561198377298887#!/compare/1673740800/1673827200 https://backpack.tf/profiles/76561198111761941#!/compare/1673481600/1674000000

-56 keys: https://marketplace.tf/items/tf2/30042;5;u13 https://manic.tf/keyprice/?at=2022-12-31&site=marketplace.tf

Ready for the fun part?

-Untraceable: https://backpack.tf/profiles/76561198112282074#!/compare/1671148800/1674691200 https://backpack.tf/profiles/76561198166322463#!/compare/1674604800/1675900800

-Untraceable: https://backpack.tf/profiles/76561198166322463#!/compare/1674604800/1675900800 https://backpack.tf/profiles/76561198048166329#!/compare/1665532800/1676246400

-Untraceable: https://backpack.tf/profiles/76561198048166329#!/compare/1665532800/1676246400 https://backpack.tf/profiles/76561198043147463#!/compare/1675987200/1676246400

-Untraceable: https://backpack.tf/profiles/76561198043147463#!/compare/1676246400/1677456000 https://backpack.tf/profiles/76561198018609065#!/compare/1673308800/1676937600

I'm honestly going to advocate for 56-65 here. 48 is a really old sale, and was nearly outdated when this suggestion was made. This suggestion appears to have been left up to examine the incoming shift in the market, reflected by the buyers being very close to 48 today.