Sale 1:

Sold for 11 keys

Seller: https://backpack.tf/profiles/76561198337734785#!/compare/1546992000/1547078400

Buyer: https://backpack.tf/profiles/76561198081877330#!/compare/1546473600/1547596800

https://backpack.tf/item/4241645116

Hard to determine which keys were involved as the buyer bought 2 hats from the same seller on the same day, but going off of ID’s, it was definitely only 11 keys. Metal was for the other hat too.

X = 11

Sale 2:

Sold to a quickbuyer for 10 keys

Seller: https://backpack.tf/profiles/76561198081877330#!/compare/1552608000/1552694400

Buyer: https://backpack.tf/profiles/76561198002757046#!/compare/1552521600/1552608000

https://backpack.tf/item/4241645116

X = 10

Sales at:

10

11

No current sellers.

10 went to a quickbuyer, excluding.

Going with 11 flat.