History 1: https://backpack.tf/item/6630526241

Withdraw

History 2: https://backpack.tf/item/5991931048

The Collector's Spec KS Bazooka and Parka match, more must have been involved but can't trace it:

https://backpack.tf/profiles/76561198416955733#!/compare/1606867200/1607040000

https://backpack.tf/profiles/76561198432714467#!/compare/1606953600/1607040000

Untraceable, the keys in the buyer's compare don't match

https://backpack.tf/profiles/76561198432714467#!/compare/1612137600/1612224000

https://backpack.tf/profiles/76561198232041512#!/compare/1612137600/1612224000

History 3: https://backpack.tf/item/4203760087

Untraceable:

https://backpack.tf/profiles/76561198105528493#!/compare/1607212800/1609891200

https://backpack.tf/profiles/76561198091502579#!/compare/1609804800/1609891200

Sold on marketplace.tf January 24

History 4: https://backpack.tf/item/4075203368

Bot transfers

Marketplace.tf: https://marketplace.tf/items/tf2/1157;5;u3034

December 1: $140.98/1.76= 80.1 ~80 keys

December 7: $80/1.76=45.45 ~45 keys

January 24: $179.99/2.1=85.71 ~86 keys

Sales at 45, 80, 86

Given the buyers up to ~78 keys, 45 looks like a low outlier.

Going 80-86