Sale 1:

Sold for Nuts n’ Bolts El Jefe (Mini at 12.5 below) + 2 keys

http://www.tf2outpost.com/trade/28804677 - B/O of 15

Seller: https://backpack.tf/profiles/76561197964171516#!/compare/1491091200/1491177600

Buyer: https://backpack.tf/profiles/76561198086828675#!/compare/1491091200/1491177600

Rounding down, due to the current seller at 15 keys going 3 months unsold.

X = 14

Sale 2:

Sold with 3 keys for Disco Beat Down Mann of Reason

http://www.tf2outpost.com/trade/28858354 - Seller confirms sale (legend)

Seller: https://backpack.tf/profiles/76561198086828675#!/compare/1491091200/1491177600

Buyer: https://backpack.tf/profiles/76561198062432568#!/compare/1491091200/1491177600

Should be used on the Mann of Reason

Sale 3:

Sold with 3 keys for Steaming Master’s Yellow Belt

http://www.tf2outpost.com/trade/28858389 - B/O of 15

Seller: https://backpack.tf/profiles/76561198062432568#!/compare/1491436800/1491523200

Buyer: https://backpack.tf/profiles/76561198043028890#!/compare/1491436800/1491523200

Should be used on the belt.

Sale 4:

Bulk for Blizzardy Salty Dog

No outpost

Seller: https://backpack.tf/profiles/76561198043028890#!/compare/1491609600/1491696000

Buyer: https://backpack.tf/profiles/76561198066195760#!/compare/1491609600/1491696000

Nuts Jefe Mini:

https://backpack.tf/suggestion/59525117cf6c753238715f45

Sellers:

15 keys:

http://i.imgur.com/Mz446lU.png - 3 months

https://backpack.tf/u/76561198066195760

http://i.imgur.com/ZIG6Nq7.png

https://backpack.tf/u/76561198136702159

http://www.tf2outpost.com/trade/29234106 - 1 week

17 keys:

http://i.imgur.com/ci40NUO.png - 6 months

https://backpack.tf/u/76561198086948995

Sales at:

14

Going with 14 flat.