Item 1

https://backpack.tf/item/12727909688

Sale 1

https://backpack.tf/profiles/76561199104559253#!/compare/1685750400/1685836800

https://backpack.tf/profiles/76561198044156608#!/compare/1685232000/1685923200

15 keys

Sale 2

https://backpack.tf/profiles/76561198044156608#!/compare/1688774400/1689897600

https://backpack.tf/profiles/76561199161916038#!/compare/1690761600/1690848000

No clue

Sale 3

https://backpack.tf/profiles/76561199161916038#!/compare/1691107200/1691539200

https://backpack.tf/profiles/76561198876698605#!/compare/1690761600/1692057600

No clue

Item 2

https://backpack.tf/item/12466121996

Sale 4

https://backpack.tf/profiles/76561199110809353#!/compare/1689724800/1689811200

https://backpack.tf/profiles/76561198027857565#!/compare/1689033600/1690761600

No clue

Item 3

https://backpack.tf/item/12416489513

Sale 5

https://backpack.tf/profiles/76561198169769254#!/compare/1687219200/1687305600

https://backpack.tf/profiles/76561198064957760#!/compare/1679529600/1687305600

No clue

Sale 6

https://backpack.tf/profiles/76561198064957760#!/compare/1687305600/1687392000

https://backpack.tf/profiles/76561198145331385#!/compare/1687219200/1687305600

13 keys?

Sale 7

https://backpack.tf/profiles/76561198145331385#!/compare/1688601600/1688774400

https://backpack.tf/profiles/76561199112885338#!/compare/1689033600/1690848000

No clue

Item 4

https://backpack.tf/item/12931513915

Sale 8

https://backpack.tf/profiles/76561199026390261#!/compare/1687219200/1687305600

https://backpack.tf/profiles/76561198145331385#!/compare/1687219200/1687305600

https://imgur.com/a/CfbpCrx

~17 keys?

Sale 9

https://backpack.tf/profiles/76561198145331385#!/compare/1688601600/1688774400

No clue

Item 5

https://backpack.tf/item/12641316465

Sale 10

https://backpack.tf/profiles/76561198032388432#!/compare/1685491200/1686528000

https://backpack.tf/profiles/76561198865213502#!/compare/1686268800/1686355200

No clue

Sale 11

https://backpack.tf/profiles/76561198865213502#!/compare/1686355200/1686787200

https://backpack.tf/profiles/76561198344023079#!/compare/1686787200/1686873600

Untrace on buyer side

Everything else in this history is untrace / gambling likely

Item 6

https://backpack.tf/item/12538103087

Sale 12

https://backpack.tf/profiles/76561198349848918#!/compare/1686009600/1686528000

https://backpack.tf/profiles/76561198249078668#!/compare/1686441600/1686528000

18 keys

Sale 13

https://backpack.tf/profiles/76561198249078668#!/compare/1687046400/1687132800

Sold to an unknown history here

Mp.tf

https://marketplace.tf/items/tf2/31345;5;u278

$59.99 / $1.99 = ~30 keys (Jun 5)

$54.99 / $2.00 = ~27 keys (Jun 27)

$54.99 / $2.00 = ~27 keys (Aug 6)

Total Sales

13, 15, 17, 18, 27, 27, 30

https://imgur.com/a/t3kusFe

13 is under buyers

30 is unsold for 2+ wks now, we can call that high and cut off the low end (15) for being close to buyers as well to balance it out

Running with 17 - 27 keys c: