Item 1

https://backpack.tf/item/12391364277

Sale 1

https://backpack.tf/profiles/76561198123518712#!/compare/1685232000/1685577600

https://backpack.tf/profiles/76561198393570312#!/compare/1685404800/1686009600

Untrace on buyer side, looks like 18 keys + ~1 key in random adds

~19 keys

Sale 2

https://backpack.tf/profiles/76561198393570312#!/compare/1684713600/1685404800

https://backpack.tf/profiles/76561198122075183#!/compare/1685232000/1685404800

Probably bulk for a Purple Energy Dark Falkirk Helm

Sale 3

https://backpack.tf/profiles/76561198122075183#!/compare/1686096000/1686268800

https://backpack.tf/profiles/76561198287016735#!/compare/1686268800/1686355200

Kill-a-Watt Hustler's Hallmark + 1 key

Mini for the Kill-a-Watt Hustler's Hallmark 24 keys

24 + 1 = 25 keys

Item 2

https://backpack.tf/item/12308960911

Covering mp.tf at the end

Item 3

https://backpack.tf/item/12230033597

Sale 4

https://backpack.tf/profiles/76561198119635547#!/compare/1673395200/1685750400

https://backpack.tf/profiles/76561199085116273#!/compare/1687132800/1687219200

No clue

Sale 5

https://backpack.tf/profiles/76561199085116273#!/compare/1687737600/1687824000

https://backpack.tf/profiles/76561199215904293#!/compare/1687737600/1687910400

No clue

Sale 6

https://backpack.tf/profiles/76561199215904293#!/compare/1688601600/1688774400

https://backpack.tf/profiles/76561198311498888#!/compare/1688688000/1688774400

Looks like a bulk dump to STN, hard to say here

Sale 7

https://backpack.tf/profiles/76561198311498888#!/compare/1688860800/1688947200

https://backpack.tf/profiles/76561198087044275#!/compare/1688860800/1688947200

Can only match 9 keys on seller side, seem incomplete

Item 4

https://backpack.tf/item/12187409410

Sale 8

https://backpack.tf/profiles/76561198850121720#!/compare/1683504000/1683590400

https://backpack.tf/profiles/76561198180568670#!/compare/1682121600/1683590400

No clue

Mp.tf

https://marketplace.tf/items/tf2/31308;5;u260

$59.99 / $1.98 = ~30 keys (Jun 6)

$49.99 / $2.00 = ~25 keys (Jun 26)

$39.95 / $1.96 = ~20 keys (Jul 21)

Total Sales

19, 20, 25, 25, 30

https://imgur.com/a/wythTSJ

Really good reason to exclude any sales here

Taking 19 - 30 keys c: