History 1: https://backpack.tf/item/5022986460

https://marketplace.tf/items/tf2/463;5;u3049

$79.99 / $1.83 = 43.71 keys ~44 keys

History 2: https://backpack.tf/item/8773816169

Bulk:

https://backpack.tf/profiles/76561199111073161#!/compare/1639958400/1640044800

https://backpack.tf/profiles/76561198965657487#!/compare/1639872000/1640044800

Untrace:

https://backpack.tf/profiles/76561198965657487#!/compare/1641859200/1641945600

https://backpack.tf/profiles/76561198204534945#!/compare/1641859200/1641945600

Sold for a Cool Festivized Killstreak Gift Wrapped Knife (Field-Tested) (24.5 ~25 keys):

https://backpack.tf/profiles/76561198204534945#!/compare/1642204800/1642291200

https://backpack.tf/profiles/76561198409266344#!/compare/1642204800/1642291200

buyout was 30 https://gladiator.tf/listings/61e35286037a7e8aedc9b879

25 keys:

https://backpack.tf/profiles/76561198409266344#!/compare/1642204800/1642291200

https://backpack.tf/profiles/76561198844438037#!/compare/1642204800/1642291200

buyer listed on mptf for $79.99

History 3: https://backpack.tf/item/1555896698

Sold alongside double-spelled Strange FT and 3 keys for Fountain of Delight Taunt: The Schadenfreude:

https://backpack.tf/profiles/76561198035699895#!/compare/1639094400/1640476800

https://backpack.tf/profiles/76561198140316312#!/compare/1639008000/1639094400

better used there

29 keys:

https://backpack.tf/profiles/76561198140316312#!/compare/1640995200/1641081600

https://backpack.tf/profiles/76561198091502579#!/compare/1640995200/1641081600

buyer listed on mp for $79.99

Sales at 25, 25, 29, 44

44 definitely looks out of place here, it's the only MP sale and all the pure sales are in the 25-29 key range. The current mp sellers are taking a while to sell too

Taking 25-29 keys