Last one I swear

Sale 1

https://backpack.tf/profiles/76561198166302924#!/compare/1609545600/1609718400

https://i.imgur.com/oKqDF9k.png

579.90 / 2.39 = ~242 keys (thanks gege and beaser)

Sale 2

https://backpack.tf/profiles/76561198068350193#!/compare/1613088000/1613174400

https://backpack.tf/profiles/76561198166302924#!/compare/1613174400/1613260800

used as overpay with 420 pure on a chiro charmer's. Not enough data to factor in to price.

Sale 3

https://backpack.tf/profiles/76561198081232115#!/compare/1613433600/1613520000

https://backpack.tf/profiles/76561198068350193#!/compare/1613347200/1613520000

https://i.imgur.com/LqTjZAM.png

bought for 305 pure.

Other one hasn't moved in 3 years, and the unboxer has no intent to sell.

Alright, this should cover everything, backpack can't track back the owner who sold on the market, and even if it could I would assume they're the unboxer, seeing as the hat had no prior history on backpack. If there's anything else, let me know.