Violet Vortex Bat Hat

Taking last 2 months

Mptf sales

https://marketplace.tf/items/tf2/31058;5;u131

Jun 16: 33.03/1.98 = 16.68 keys rounding to 17 keys.

Jun 20: 40/1.98 = 20.2 keys rounding to 20 keys.

Jun 22: 33.02/1.98 = 16.68 keys rounding to 17 keys.

Jul 4: 46/2 = 23 keys.

Jul 7: 33.04/1.98 = 16.69 keys rounding to 17 keys.

Jul 30: 41.99/1.92 = 21.87 keys rounding to 22 keys.

Aug 3: 41/1.89 = 21.69 keys rounding to 22 keys.

https://backpack.tf/item/8185262667

Not sure about the other histories.

No bot.tf snapshots available

Bot.tf sales

https://imgur.com/a/p5mtg8b

1x sold at 24 keys

1x sold at 25 keys

Sale 1

https://backpack.tf/profiles/76561198017911489#!/compare/1596672000/1596758400

https://backpack.tf/profiles/76561198043444428#!/compare/1596672000/1596758400

Untrace

Sale 2

https://backpack.tf/profiles/76561198261703372#!/compare/1590969600/1592265600

https://backpack.tf/profiles/76561198126946022#!/compare/1592179200/1594512000

Bulk for something

Sale 3

https://backpack.tf/profiles/76561198341171690#!/compare/1592870400/1592956800

https://backpack.tf/profiles/76561198321576432#!/compare/1592870400/1592956800

This sale corresponds with the 24 key bot.tf sale above

Sale 4

https://backpack.tf/profiles/76561198335791307#!/compare/1594598400/1594684800

https://backpack.tf/profiles/76561198093438754#!/compare/1594598400/1594771200

Likely the 25 key bot.tf sale, dates match

Sale 5

https://backpack.tf/profiles/76561198093438754#!/compare/1596153600/1596240000

https://backpack.tf/profiles/76561198257380123#!/compare/1596153600/1596240000

Sold for 20 keys.

https://backpack.tf/item/8158352736 - Buyer for 25 resold for 20 in ~2 weeks.

Sales are at:

17

17

17

20

20

22

22

24

25

Classies - https://imgur.com/a/n9nbw1v

Young at 21, 24 and 25. Buyers at 15 keys.

https://backpack.tf/item/8159864365 - Seller at 24 has owned it since May.

https://backpack.tf/item/8156827207 - Seller at 25 has owned it for a long time.

Since 25 resold for 20, excluding 25.

Edit: While making this, the seller at 21 disappeared, still falls into the range i guess

Taking the range as 17 - 24 keys!