Sale 1:

Sold for 23 keys

Seller: https://backpack.tf/profiles/76561198052887895#!/compare/1515024000/1515110400

Buyer: https://backpack.tf/profiles/76561198265309302#!/compare/1515024000/1515110400

X = 23

Sale 2:

Quicksold for 18 keys + 17 ref

Seller: https://backpack.tf/profiles/76561198265309302#!/compare/1515110400/1515196800

Buyer: https://backpack.tf/profiles/76561197974364849#!/compare/1515110400/1515196800

X = 19

Sellers:

~22 keys: – scrap.tf

https://i.imgur.com/nC1CbMV.png

https://backpack.tf/item/4882264941 - ~2 days

25 keys:

https://i.imgur.com/WBaX4QL.png

https://backpack.tf/item/396755269

Sales at:

19

23

19 quicksold, excluding 19.

Scrap.tf seller is too young to be included in the range, and no point waiting for it to mature because the sale at 23 would become outdated. Also best not to use scrap.tf listings for prices at the moment as their prices have been changing over the last couple of days.

Going with 23 flat.