Cloud 9 Metal Slug

New price: 12-14 keys

[proof below]

SALE #1 = invalid

https://backpack.tf/profiles/76561198052344629#!/compare/1521244800/1521936000

https://backpack.tf/profiles/76561198212993755#!/compare/1521244800/1521331200

Uh, seems quite high. Along 8 keys for a Cloud 9 Sole Mate (45, outdated though).

SALE #2 = 14 keys

https://backpack.tf/profiles/76561198066195760#!/compare/1518912000/1518998400

https://backpack.tf/profiles/76561198212993755#!/compare/1518912000/1518998400

Sold for 14 keys.

SALE #3 = invalid

https://backpack.tf/profiles/76561198030589062#!/compare/1517011200/1517097600

Bulk.

SALE #4 = 13 keys

https://backpack.tf/profiles/76561198030589062#!/compare/1516924800/1517011200

https://backpack.tf/profiles/76561198150448445#!/compare/1516924800/1517011200

http://www.tf2outpost.com/trade/29499887 - B/O 12 keys

Sold for a Massed Flies Noble Amassment of Hats (open suggestion at 13 keys)

SUMMARY

Sales: 12 / 14 keys

Sellers: 15 keys

https://gyazo.com/a52ee31ee568cca8c737c5b1ee2cd4ad

Going with 12-14 keys.