https://marketplace.tf/items/tf2/465;5;u29

https://backpack.tf/item/1090902965

$42.99 / $2.15 = 20.00 keys

https://mannco.store/item/13595

https://backpack.tf/item/1616506291

$29.99 / $1.86 = 16.12 keys

https://backpack.tf/profiles/76561198089191994#!/compare/1609200000/1610582400

https://backpack.tf/profiles/76561199100906514#!/compare/1610496000/1610582400

https://gyazo.com/2b2545958928cd686dee08f724a6e711

My bot got it for a 14 key buy order

https://backpack.tf/profiles/76561199100906514#!/compare/1615766400/1615852800

https://backpack.tf/profiles/76561198117335454#!/compare/1615766400/1615852800

https://gyazo.com/c111409f2f4280b7c38965156f8aad25

Bot sold for 26 keys

https://backpack.tf/profiles/76561198089888094#!/compare/1608508800/1612310400

https://backpack.tf/profiles/76561198984663128#!/compare/1609200000/1613088000

Untraceable

https://backpack.tf/profiles/76561198984663128#!/compare/1613088000/1613433600

https://backpack.tf/profiles/76561198994801324#!/compare/1612915200/1614297600

Untraceable

https://backpack.tf/profiles/76561199004803157#!/compare/1608681600/1608768000

https://backpack.tf/profiles/76561198135388328#!/compare/1608681600/1608768000

Untraceable

https://backpack.tf/profiles/76561198135388328#!/compare/1609113600/1609200000

https://backpack.tf/profiles/76561198970654800#!/compare/1609113600/1609200000

Untraceable

https://backpack.tf/profiles/76561198970654800#!/compare/1611964800/1612051200

https://backpack.tf/profiles/76561198071346629#!/compare/1611878400/1611964800

Added 8 for Strange Kritz (36) https://gyazo.com/c1706e7990f97f1cdfbcbfee2bac8d2a

Sale = 28 keys, 23 key buyout https://gladiator.tf/listings/6014aa4ac90efc0e42a293ae

https://backpack.tf/profiles/76561198071346629#!/compare/1612396800/1612483200

https://backpack.tf/profiles/76561198942936039#!/compare/1612396800/1612483200

Only a few keys matches

https://backpack.tf/profiles/76561198942936039#!/compare/1612483200/1612569600

https://backpack.tf/profiles/76561198139370347#!/compare/1612396800/1612483200

Untraceable

Sales:

16

20

23

26

buyers weren't at 22-23 during the time of the 23 key sale

buyers were at 20 during the 20 key sale though https://gladiator.tf/listings/603ab702011e7c2a48702ee1

but its marketplace and the key price is really high

so lets go with 23-26, buyers are still confidently over 20