https://marketplace.tf/items/tf2/30014;5;u58

Two sales at 31.99

12/6: https://manic.tf/keyprice/?at=2021-12-06&price=31.99

$31.99 / $1.84 = 17.39 keys [Excluding as was later dumped to bot]

12/21: https://manic.tf/keyprice/?site=marketplace.tf&at=2021-12-21&price=31.99

$31.99 / $1.82 = 17.58 keys

Item 1:

https://backpack.tf/item/10238599935

Sale 3 and 4 excluding as it was bought and dumped to bot buyer afterwards

Sale 3

https://backpack.tf/profiles/76561199124947178#!/compare/1634083200/1634601600

Sale 4

https://backpack.tf/profiles/76561198131089513#!/compare/1634947200/1635120000

Sale 5 and 6 are just inventory shifting

Sale 5:

https://backpack.tf/profiles/76561198017901187#!/compare/1635292800/1635552000

Sale 6:

https://backpack.tf/profiles/76561198017901187#!/compare/1635552000/1635552000/nearest

Item 2:

https://backpack.tf/item/7957107004

Sale 7:

https://backpack.tf/profiles/76561198941329684#!/compare/1633996800/1634169600

Keys got traded away too quickly, untrace

Sale 8:

https://backpack.tf/profiles/76561198139171368#!/compare/1634688000/1634774400

Shifting inventories

Sale 9:

https://backpack.tf/profiles/76561198139171368#!/compare/1640908800/1640736000

Shifting inventories

Item 3:

https://backpack.tf/item/7957053639

Sale 10:

https://backpack.tf/profiles/76561198062284983#!/compare/1632096000/1636416000

Untrace

Item 4:

https://backpack.tf/item/7955751808

Sale 11:

https://backpack.tf/profiles/76561199193412191#!/compare/1635120000/1635206400

Untrace

Sale 12 and 13 are shifting inventories:

https://backpack.tf/profiles/76561199111354228#!/compare/1635206400/1635292800

https://backpack.tf/profiles/76561198091502579#!/compare/1635292800/1635206400

Mp sale above

Sale 14:

https://backpack.tf/profiles/76561198091502579#!/compare/1635292800/1635206400

Dumped to qs.store

Sale 15 and 16 excluded as was dumped to STN

https://backpack.tf/profiles/76561199183429648#!/compare/1639785600/1640131200

https://backpack.tf/profiles/76561199183429648#!/compare/1640217600/1640304000

Only sale, 18

Taking 18