Item 1

https://backpack.tf/item/10763828928

Nothing here

Item 2

https://backpack.tf/item/10711776585

Sale 1

https://backpack.tf/profiles/76561199084784906#!/compare/1682985600/1683072000

https://backpack.tf/profiles/76561198027847341#!/compare/1682640000/1686268800

6 keys?

Item 3

https://backpack.tf/item/9659197891

Sale 2

https://backpack.tf/profiles/76561199144178001#!/compare/1684108800/1684540800

https://backpack.tf/profiles/76561198850178158#!/compare/1684108800/1684195200

No clue

Sale 3

https://backpack.tf/profiles/76561198850178158#!/compare/1685232000/1685318400

https://backpack.tf/profiles/76561198272922325#!/compare/1683676800/1686009600

No clue

Item 4

https://backpack.tf/item/7672141278

Nothing here

Item 5

https://backpack.tf/item/3668006867

Sale 4

https://backpack.tf/profiles/76561199161916038#!/compare/1685232000/1685318400

https://backpack.tf/profiles/76561199099521803#!/compare/1685145600/1685232000

Probably gambling

Sale 5

https://backpack.tf/profiles/76561199099521803#!/compare/1685404800/1685491200

https://backpack.tf/profiles/76561199482552957#!/compare/1687305600/1687305600

Can't load buyer inv

Item 6

https://backpack.tf/item/13201206417

Sale 6

https://backpack.tf/profiles/76561198272251811#!/compare/1681430400/1683158400

https://backpack.tf/profiles/76561198994531148#!/compare/1671062400/1685836800

Can't load seller inv

Ignoring gambling....

Sale 7

https://imgur.com/a/OL0nZgc

https://backpack.tf/profiles/76561199238815382#!/compare/1688774400/1688860800

https://backpack.tf/profiles/76561198091502579#!/compare/1688428800/1688947200

Likely 4 keys, but I can't match any of them with Erik

Mp.tf

https://marketplace.tf/items/tf2/30609;5;u3069

$26.99 / $2.03 = ~13 keys (May 12)

Total Sales

6, 13

https://imgur.com/a/kXlFLRp

13 seems high given the potential 4 sale

Taking 6 keys flat c: