https://marketplace.tf/items/tf2/31115;5;u154

https://manic.tf/keyprice/?site=marketplace.tf&at=2022-01-18&price=29.99

https://manic.tf/keyprice/?at=2022-01-01&price=29.99

$29.99 / $1.83 = 16.39 keys

$29.99 / $1.83 = 16.39 keys

https://manic.tf/keyprice/?site=marketplace.tf&at=2022-02-12&price=29.99

$29.99 / $1.78 = 16.85 keys

Item 1:

https://backpack.tf/item/9249594285

Sale 4:

https://backpack.tf/profiles/76561197964171516#!/compare/1644624000/1644710400

https://backpack.tf/profiles/76561199108950874#!/compare/1644624000/1644710400

Sold for a Tesla Coil Wing Mann and a Cursed Confinement Disco Fever, excluding as it was dumped to a bot

Sale 5:

https://backpack.tf/profiles/76561199192088525#!/compare/1644710400/1644883200

Dumped to bot, listed on marketplace afterwards.

Item 2:

https://backpack.tf/item/9221288677

Sale 6:

https://backpack.tf/profiles/76561198206316219#!/compare/1643500800/1643673600

Scam? Not sure, but it was dumped to quicksell.store, so excluding

Sale 7:

https://gladiator.tf/listings/61fa851d83b03f85cd1a8796

https://backpack.tf/profiles/76561198885660802#!/compare/1627603200/1643760000

https://backpack.tf/profiles/76561198850274253#!/compare/1643760000/1643846400

Untrace, but there was a buy out for 14, so it was likely that. Sold the same day it was listed, so excluding it as quicksell.

Item 3:

https://backpack.tf/item/9184919040

Sale 8:

https://backpack.tf/profiles/76561198311498888#!/compare/1638662400/1638748800

https://backpack.tf/profiles/76561198031508158#!/compare/1638576000/1638662400

12 keys [Countered]

Sale 9:

https://backpack.tf/profiles/76561198031508158#!/compare/1639699200/1639785600

https://backpack.tf/profiles/76561198049241522#!/compare/1639440000/1640131200

13 keys

Item 4:

https://backpack.tf/item/9140536803

Sale 10:

https://backpack.tf/profiles/76561198123428278#!/compare/1637193600/1637280000

https://backpack.tf/profiles/76561198993873071#!/compare/1637280000/1637366400

Untrace

Sale 11:

https://backpack.tf/profiles/76561198123428278#!/compare/1638489600/1638576000

https://backpack.tf/profiles/76561198061456736#!/compare/1638489600/1638576000

15 keys

Sales at 13, 15, 16, 16, 17

Taking 13 to 17