Revising, thanks Xergoyf

Haunted Ghosts Grimm Hatte

https://backpack.tf/item/4068067744

https://backpack.tf/profiles/76561198325595749#!/compare/1602201600/1602288000

https://backpack.tf/profiles/76561198160315610#!/compare/1602115200/1603238400

Sold for 45 keys

https://backpack.tf/item/528828339 Duped

https://backpack.tf/profiles/76561198069854269#!/compare/1599696000/1599782400

https://backpack.tf/profiles/76561198105071091#!/compare/1599782400/1599868800

https://bot.tf/stats/listings/MNREEODR Seems like the B/O was 36

https://backpack.tf/profiles/76561198105071091#!/compare/1599955200/1600041600

https://backpack.tf/profiles/76561198101623903#!/compare/1599609600/1599955200

Untrace

Marketplace sales: https://marketplace.tf/items/tf2/383;5;u8

9/5/2020 - $115.5 / $1.83 = 63.11 keys ~ 63 (https://backpack.tf/item/387568450)

11/6/2020 - $115.5 / $1.79 = 64.53 keys ~ 65 (https://backpack.tf/item/528828339)

Both marketplace sales are duped.

Sales:

(Clean)

45

(Duped)

36

63

65

Considering that the duped ones sold higher than the clean one. Taking duped sales into account.

Taking 45 - 65 keys