Blizzardy Storm Sergeant's Drill Hat

Freebie by scourge and king, thanks RockSolidWood for the previous suggestion

https://backpack.tf/suggestion/5f27d3b4df86d7318f784a67

Mptf sales

https://marketplace.tf/items/tf2/183;5;u30

Jul 26: 52/1.93 = ~27 keys

Can't find history

Aug 25: 51.09/1.83 = ~28 keys

https://backpack.tf/item/770908663

Sale 1

https://backpack.tf/profiles/76561198207675609#!/compare/1589587200/1589673600

https://backpack.tf/profiles/76561198069794702#!/compare/1589587200/1589673600

Sold for 24 keys

Sale 2

https://backpack.tf/profiles/76561198069794702#!/compare/1589673600/1589760000

https://backpack.tf/profiles/76561198125791160#!/compare/1589587200/1589673600

Bulk

Sale 3

https://backpack.tf/profiles/76561198183912661#!/compare/1593734400/1593907200

https://backpack.tf/profiles/76561198985910282#!/compare/1593820800/1593907200

Untrace

Sale 4

https://backpack.tf/profiles/76561198385044857#!/compare/1592956800/1593043200

https://backpack.tf/profiles/76561198202168173#!/compare/1592870400/1592956800

with Scorching Flames Archer's Sterling for a Phosphorous Dragonborn Helmet

bulky

Sale 5

https://backpack.tf/profiles/76561198202168173#!/compare/1592956800/1593043200

https://backpack.tf/profiles/76561198354979270#!/compare/1592956800/1593043200

Untrace

Sale 6

https://backpack.tf/profiles/76561198354979270#!/compare/1594080000/1594252800

https://backpack.tf/profiles/76561198138690072#!/compare/1594080000/1594166400

Traded for a Disco Beat Down Bumble Beenie (40 keys)

Sale 7

https://backpack.tf/profiles/76561198881434725#!/compare/1590537600/1590624000

https://backpack.tf/profiles/76561198004290305#!/compare/1590624000/1590796800

Untrace

Sale 8

https://backpack.tf/profiles/76561198004290305#!/compare/1591488000/1591574400

https://backpack.tf/profiles/76561198220344291#!/compare/1591488000/1591574400

12 keys + earbuds + Orbiting Fire Defiant Spartan

12 + 10 + 3.5 = 25.5 keys rounding to 26 keys

Sale 9

https://backpack.tf/profiles/76561198220344291#!/compare/1592179200/1592265600

https://backpack.tf/profiles/76561198292848229#!/compare/1592006400/1592265600

3 keys + painted maxs

about 24 or 25 keys, should fall in range

Sale 10

https://backpack.tf/item/3638656489

https://backpack.tf/profiles/76561198043059273#!/compare/1597795200/1597881600

https://backpack.tf/profiles/76561198220151393#!/compare/1597795200/1597968000

Sold for 30 keys

Sales are at:

24

25

26

27

28

30

40

Classies - https://imgur.com/a/7OeyFbD

No sellers, buyers at 23.5~ keys. Excluding 24

Excluding 40, high outlier.

Taking the range as 25 - 30 keys!