Item 1

https://backpack.tf/item/11614081607

Sale 1

https://backpack.tf/profiles/76561198017817342#!/compare/1681948800/1683676800

https://backpack.tf/profiles/76561198345423154#!/compare/1682035200/1683849600

Can't say for sure

Item 2

https://backpack.tf/item/10992005168

Sale 2

https://backpack.tf/profiles/76561199225204025#!/compare/1681603200/1681689600

https://backpack.tf/profiles/76561199026390261#!/compare/1681689600/1681776000

Looks like ~20 keys

Item 3

https://backpack.tf/item/8258127887

Sale 3

https://backpack.tf/profiles/76561198881748091#!/compare/1684281600/1685577600

https://backpack.tf/profiles/76561198087006579#!/compare/1683590400/1686268800

Can't match any keys here

Item 4

https://backpack.tf/item/2415215291

Sale 4

https://backpack.tf/profiles/76561198337734785#!/compare/1683504000/1683590400

https://backpack.tf/profiles/76561199143457009#!/compare/1682467200/1686182400

20 keys?

Item 5

https://backpack.tf/item/2029941184

Spelled, exuding

Mp.tf

https://marketplace.tf/items/tf2/30071;5;u30

$59.95 / $2.02 = ~30 keys (May 11)

$70.00 / $2.03 = ~34 keys (Jun 25)

Total Sales

20, 20, 30, 34

https://imgur.com/a/cJG4NIv

34 seems high, one of the 20 sales was a buyer dump but another non-buyer dump at 20 should justify including it

Taking 20 - 30 keys c: