History 1: https://backpack.tf/item/9207930303

Untraceable sale:

https://backpack.tf/profiles/76561199071994291#!/compare/1600128000/1600387200

https://backpack.tf/profiles/76561198379270361#!/compare/1600041600/1600128000

13 keys

https://backpack.tf/profiles/76561198379270361#!/compare/1600128000/1600214400

https://backpack.tf/profiles/76561198071365026#!/compare/1600128000/1600473600

Untraceable:

https://backpack.tf/profiles/76561198071365026#!/compare/1600992000/1601337600

https://backpack.tf/profiles/76561198094952141#!/compare/1601078400/1601856000

History 2: https://backpack.tf/item/9185201782

untraceable:

https://backpack.tf/profiles/76561198255119379#!/compare/1599782400/1600560000

https://backpack.tf/profiles/76561198254653580#!/compare/1600300800/1602201600

History 3: https://backpack.tf/item/9172148896

Untraceable:

https://backpack.tf/profiles/76561198110945607#!/compare/1599264000/1599350400

https://backpack.tf/profiles/76561198342130083#!/compare/1599091200/1599350400

Untraceable:

https://backpack.tf/profiles/76561198342130083#!/compare/1599782400/1600819200

https://backpack.tf/profiles/76561198079422043#!/compare/1599350400/1600128000

15 keys:

https://backpack.tf/profiles/76561198079422043#!/compare/1603238400/1603324800

https://backpack.tf/profiles/76561198041391488#!/compare/1601164800/1603324800

History 4: https://backpack.tf/item/9148473177

10 keys:

https://backpack.tf/profiles/76561198112281935#!/compare/1602460800/1602547200

https://backpack.tf/profiles/76561197964171516#!/compare/1602460800/1602547200

Untraceable:

https://backpack.tf/profiles/76561197964171516#!/compare/1602806400/1602892800

https://backpack.tf/profiles/76561198355678557#!/compare/1585872000/1602892800

I bought it for 13 pure:

https://backpack.tf/profiles/76561198355678557#!/compare/1603843200/1603929600

https://backpack.tf/profiles/76561198390770929#!/compare/1603929600/1604016000

https://imgur.com/xU03qJf

History 5: https://backpack.tf/item/9146537195

Untraceable:

https://backpack.tf/profiles/76561198105092022#!/compare/1599004800/1599177600

https://backpack.tf/profiles/76561198046508051#!/compare/1599004800/1599091200

Trade with suspected scammer ALT:

https://backpack.tf/profiles/76561198046508051#!/compare/1599091200/1599177600

https://backpack.tf/profiles/76561198876179362#!/compare/1599091200/1599264000

History 6: https://backpack.tf/item/9137869955

untraceable:

https://backpack.tf/profiles/76561197987317160#!/compare/1598054400/1599091200

https://backpack.tf/profiles/76561198048428754#!/compare/1541721600/1600560000

Untraceable:

https://backpack.tf/profiles/76561198048428754#!/compare/1600560000/1600732800

https://backpack.tf/profiles/76561198119578189#!/compare/1600387200/1600560000

History 7:

Untrace:

https://backpack.tf/profiles/76561198050365433#!/compare/1599609600/1599696000

https://backpack.tf/profiles/76561198152391831#!/compare/1599350400/1599782400

3 sales on Marketplace.tf, none of them are traceable via histories https://marketplace.tf/items/tf2/31117;5;u15

September 7: $22/1.83=12.02 keys ~12

September 10: $28.89/1.85=15.62 keys ~16

September 18: $28.49/1.85=15.4 keys ~15

Sales: 10, 12, 13, 13, 15, 15, 16

Unsolds:

Marketplace.tf: N/A

Backpack.tf: 1 @ 15 keys bumped, listed 10 days ago

Buyers:

Marketplace.tf: $9/1.82=4.94 keys

Backpack.tf: 7.11-8 keys

Seller at 15 is young so I think 16 can be included

Going 10-16