The Sale:

Quicksold for 14 keys

Seller: https://backpack.tf/profiles/76561198061110181#!/compare/1550966400/1551052800

Buyer: https://backpack.tf/profiles/76561198318361156#!/compare/1550966400/1551052800

https://backpack.tf/item/460018800

X = 14

Marketplace Sales:

https://marketplace.tf/items/400;5;u7

https://manic.tf/keyprice/?at=2019-01-15 - $42.35 / $1.75 = 24.20 keys

https://manic.tf/keyprice/?at=2019-02-20 - $29 / $1.79 = 16.20 keys

X = 24

X = 16

Other Sales:

https://backpack.tf/item/460018800 (#1-3)

https://backpack.tf/item/1916107328 - scammer

#1

Bulk for pure

https://backpack.tf/profiles/76561198318361156#!/compare/1551312000/1551398400

https://backpack.tf/profiles/76561198059965592#!/compare/1551312000/1551398400

#2

Untraceable

https://backpack.tf/profiles/76561198059965592#!/compare/1551398400/1551571200

https://backpack.tf/profiles/76561198337734785#!/compare/1551312000/1551398400

#3

Untraceable

https://backpack.tf/profiles/76561198337734785#!/compare/1551484800/1551571200

https://backpack.tf/profiles/76561198875470056#!/compare/1551484800/1551571200

I doubt the 2nd link is the actual buyer, I reckon it got gambled in the actual buyer’s backpack before being scanned.

Everything else in this cursed history was gambled.

Sellers:

https://i.imgur.com/Zm0jdqA.png

https://backpack.tf/item/1822103107 - 22 keys

Sales at:

16

24

Year-old seller at 22, excluding 24.

Going with 16 flat.