https://backpack.tf/item/5256166307

Bot dump, nothing matches:

https://backpack.tf/profiles/76561198131479738#!/compare/1699920000/1701043200

https://backpack.tf/profiles/76561199307313218#!/compare/1700956800/1701043200

Looks like a transfer from the bot owner:

https://backpack.tf/profiles/76561199307313218#!/compare/1701216000/1701302400

https://backpack.tf/profiles/76561198145331385#!/compare/1701216000/1701302400

They then listed it on an other bot and sold it for 89 keys:

https://backpack.tf/profiles/76561199177132803#!/compare/1701734400/1701820800

https://backpack.tf/profiles/76561198129514379#!/compare/1701820800/1701907200

https://marketplace.tf/items/tf2/921;5;u108

https://backpack.tf/item/5190126875

December 11: $219.99/1.737=126.65 ~127 keys

key prices https://marketplace.tf/items/tf2/5021;6

(1.74+1.74+1.74+1.73+1.73+1.75+1.73)/7=1.737

~~

https://backpack.tf/item/5272445664 seller at 100 keys for a month

https://backpack.tf/item/5190126875 Appears as unsold for 2 years but the seller listed no longer has it

Going with 89 keys flat given the seller at 100