Sale 1)

https://backpack.tf/profiles/76561198118583777#!/compare/1722297600/1722384000

https://backpack.tf/item/9184114359

Better used for the Circling Heart The Law

Sale 2)

https://backpack.tf/profiles/76561198319920195#!/compare/1720742400/1723248000

https://backpack.tf/item/9184114359

Cash Trade

Sale 3)

https://backpack.tf/profiles/76561198316556363#!/compare/1722124800/1722297600

https://backpack.tf/profiles/76561198026382843#!/compare/1722211200/1722297600

https://backpack.tf/item/12729772977

Bulk

Sale 4)

https://backpack.tf/profiles/76561198026382843#!/compare/1722816000/1722902400

https://backpack.tf/profiles/76561198112362163#!/compare/1722816000/1722902400

https://backpack.tf/item/12729772977

Looks like it sold with 3 keys for a Strange Spec KS Aussie Sticky Bomb Launcher, which seemed to be dumped for 25 keys. --- 22 Keys

25 - 3 = 22 keys

Sale 5)

https://backpack.tf/profiles/76561198112362163#!/compare/1723075200/1723161600

https://backpack.tf/profiles/76561198180547525#!/compare/1722988800/1723161600

https://backpack.tf/item/12729772977

Bulk

Sale 6)

https://backpack.tf/profiles/76561198396499936#!/compare/1716163200/1717372800

https://backpack.tf/profiles/76561198387704059#!/compare/1716163200/1716508800

https://backpack.tf/item/9202491851

22 Keys

Sale 7)

https://backpack.tf/profiles/76561198387704059#!/compare/1717632000/1717804800

https://backpack.tf/profiles/76561198087099341#!/compare/1717718400/1717804800

https://backpack.tf/item/9202491851

Sold for a Massed Flies Charmer's Chapeau - Use there

Sale 8)

https://backpack.tf/profiles/76561198087099341#!/compare/1721865600/1721952000

https://backpack.tf/profiles/76561198072999396#!/compare/1721865600/1721952000

https://backpack.tf/item/9202491851

21 Keys

Sale 9)

https://backpack.tf/profiles/76561198072999396#!/compare/1723420800/1723507200

https://backpack.tf/profiles/76561199652290612#!/compare/1723420800/1723507200

https://backpack.tf/item/9202491851

Lossed to a Gamble on TF2 Easy

Sale 10)

https://backpack.tf/profiles/76561199652290612#!/compare/1723420800/1723507200

https://backpack.tf/item/9202491851

Lossed in a Gamble on TF2 Easy

Sale 11)

https://backpack.tf/profiles/76561198064724507#!/compare/1723420800/1723507200

https://backpack.tf/item/9202491851

Bulk

Sale 12)

https://marketplace.tf/items/tf2/31109;5;u148

https://backpack.tf/item/9137996629

Sold for $39.24 three times on dates July 11, July 26, and August 5

https://marketplace.tf/items/tf2/5021;6 - Keys

Key price on July 11 at $1.68

39.24/1.68= 23.35 Keys = ~ 23 Keys

Key price on July 26 at $1.72

39.24/1.72 = 22.8 Keys = ~ 23 Keys

Key price on August 5 at $1.75

39.24/1.75 = 22.4 Keys = ~ 22 Keys

Sales:

22

22

21

23

23

22

Going with a range of 21 - 23 Keys or an average of 22 Keys flat.

Feedback welcome! Thanks!