Item 1:

https://backpack.tf/item/16624415145

Excluding dumps + bot->owner trade

Sale 1:

https://backpack.tf/profiles/76561198311498888#!/compare/1773446400/1773532800

https://backpack.tf/profiles/76561198098033917#!/compare/1773273600/1773619200

Sold with 8.44 refs for 8 keys -> ~8 keys

Item 2:

https://backpack.tf/item/1559022756

Sale 2:

https://marketplace.tf/items/tf2/602;5;u34

https://marketplace.tf/items/tf2/5021;6

24.99$ on the 9th of February

24.99/1.87=~13 keys

Sale 3:

https://backpack.tf/profiles/76561198807609322#!/compare/1687651200/1770595200

https://backpack.tf/profiles/76561198042830349#!/compare/1770508800/1770595200

dunno

Seller at 9, despite it being listed only a day ago, quicksell.store bots have been trading it between each other meaning it must've been unsold for longer than that, so excluding the 13 keys and going with 8 keys flat.