Item 1 & 2

https://backpack.tf/item/15406509153

https://backpack.tf/item/6814439230

Nothing notable here...

Item 3

https://backpack.tf/item/15226092157

Sale 1

https://backpack.tf/profiles/76561199422119040#!/compare/1750291200/1756598400

https://backpack.tf/profiles/76561199564942025#!/compare/1757030400/1757116800

Can't load seller inv

Sale 2

https://backpack.tf/profiles/76561199564942025#!/compare/1757116800/1757203200

https://backpack.tf/profiles/76561199247964079#!/compare/1757116800/1757289600

No clue

Sale 3

https://backpack.tf/profiles/76561199247964079#!/compare/1757116800/1757289600

https://backpack.tf/profiles/76561198381225112#!/compare/1757289600/1758758400

2 keys, 5 ref = ~2.1 keys

Item 4

https://backpack.tf/item/14844272424

Sale 4

https://backpack.tf/profiles/76561198315558870#!/compare/1754870400/1754956800

https://backpack.tf/profiles/76561198022776135#!/compare/1754784000/1754956800

No clue

Then just mannco.store & dumped...

Item 5

https://backpack.tf/item/8172239232

Sale 5

https://backpack.tf/profiles/76561198080394134#!/compare/1753142400/1753228800

https://backpack.tf/profiles/76561199812685774#!/compare/1751500800/1753228800

Unusualified

Item 6

https://backpack.tf/item/7429058026

Sale 6

https://backpack.tf/profiles/76561199088494686#!/compare/1756252800/1756339200

https://backpack.tf/profiles/76561199053649427#!/compare/1735862400/1758067200

No clue

Item 7

https://backpack.tf/item/7052999756

Sale 7

https://backpack.tf/profiles/76561199026390261#!/compare/1753228800/1753315200

https://backpack.tf/profiles/76561199017959799#!/compare/1753315200/1753401600

No clue

Mp.tf

https://marketplace.tf/items/tf2/30920;5;u3004

https://backpack.tf/item/6479571928

https://backpack.tf/item/7428118325

$4.85 / $1.89 = ~2.55 keys (Aug 4)

$4.85 / $1.82 = ~2.65 keys (Sep 13)

$4.85 / $1,83 = ~2.65 keys (Sep 15)

$4.85 / $1.90 = ~2.55 keys (Sep 24)

Total Sales

2.1, 2.55, 2.55, 2.65, 2.65

https://gyazo.com/da1468f879915eacea1f1af28038ee13

1 long unsold @ ~2.35, multiple sellers were lower in the past month based on snapshots as well

I'll just go with 2.1 - 2.65 keys since there were still many mp sales that occurred (Which were all at the same price)

Unsolds:

https://backpack.tf/item/8368511166 - 2.35

https://backpack.tf/item/9729915870 - 2.35

https://backpack.tf/item/14844272424 - 2.35

https://backpack.tf/item/14844272424 - $4.85

https://backpack.tf/item/6931649543 - $4.85

https://backpack.tf/item/6523086641 - $4.85

https://backpack.tf/item/6483868483 - $4.85

https://backpack.tf/item/15253075166 - $4.85

https://backpack.tf/item/6510294685 - $4.85

https://backpack.tf/item/6457854657 - $5.25

https://gyazo.com/23fd07f205b7a2ace705a50e8ccca8ce (SCM)

$7.62, $10.00, $13.80