https://backpack.tf/item/5874744040 - contains all sales below

Sale 1:

Sold for 12 keys + ~1 key in metal

Seller: https://backpack.tf/profiles/76561198057572896#!/compare/1528329600/1528502400

Buyer: https://backpack.tf/profiles/76561198083892088#!/compare/1527811200/1528416000

X = 13

Sale 2:

Untraceable, sold to scrap

Seller: https://backpack.tf/profiles/76561198083892088#!/compare/1529107200/1533859200

Buyer: https://backpack.tf/profiles/76561198135388328#!/compare/1531267200/1531353600

Sale 3:

Untraceable, bought from scrap

https://backpack.tf/profiles/76561198135388328#!/compare/1531872000/1531958400

https://backpack.tf/profiles/76561198066020077#!/compare/1531872000/1531958400

Sale 4:

Appears to be bulk to scrap.tf for steaming modest metal

Seller: https://backpack.tf/profiles/76561198066020077#!/compare/1531958400/1532822400

Buyer: https://backpack.tf/profiles/76561198135388328#!/compare/1531958400/1532044800

Sale 5:

Untraceable, bought from scrap

Seller: https://backpack.tf/profiles/76561198135388328#!/compare/1533168000/1533254400

Buyer: https://backpack.tf/profiles/76561198391276400#!/compare/1533168000/1533254400

Sale 6:

Untraceable, sold to scrap

Seller: https://backpack.tf/profiles/76561198391276400#!/compare/1533513600/1533772800

Buyer: https://backpack.tf/profiles/76561198135388328#!/compare/1533686400/1533772800

The item then got bought off scrap again, then dumped to tf2mart, before the buyer’s backpack was scanned.

No current sellers.

Sale at 13.

Going with 13 flat.