— Useable Sale —

https://backpack.tf/profiles/76561198339406507#!/compare/1699574400/1699660800 - 70 Keys (Untrace, Conclusion)

https://backpack.tf/profiles/76561198068323872#!/compare/1699574400/1699920000 - 70 Keys

Item History - https://backpack.tf/item/13464328212

— Unusable Sales —

https://backpack.tf/profiles/76561199111648936#!/compare/1699488000/1699574400 - Untrace?

https://backpack.tf/profiles/76561198339406507#!/compare/1699401600/1699574400 - Bulk

Item History - https://backpack.tf/item/13464328212

— Gladiator.tf Time Machine —

S/O at 70 Keys

https://gladiator.tf/time-machine?item=Fireflies+Smissmas+Saxton&at=2023-11-11T00%3A06%3A00.000Z

— Conclusion —

For the 70 Key sale on the Seller Part, I believe they sold it for 70 Key but bought a Sapped Partizan for 70 Keys cause the Keys to be Untrace. This claim is boosted when the S/O was at 70 Keys.