Sale 1: - Credit to Cashew

Sold for $64.87AUD on the SCM on April 16th

https://steamcommunity.com/market/listings/440/Unusual%20Grimm%20Hatte

https://backpack.tf/profiles/76561198171968386#!/compare/1586822400/1587513600 - untradeable

https://backpack.tf/item/7957026990

https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key

Keys were ~$3.44AUD at the time

64.87/3.44 = ~18.86 keys

19 keys

Sale 2: - Credit to Cashew

Most likely sold for $65.87AUD on the SCM on May 12th

https://steamcommunity.com/market/listings/440/Unusual%20Grimm%20Hatte

History can’t be found currently. Only proof that this sale occurred is Cashew’s word here

https://backpack.tf/suggestion/5eb2823a7cfe027c014b9f06#comment-5ebce3e91357772365546dca

https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key

Keys were ~$3.58 at the time

65.87/3.58 = ~18.4 keys

18 keys

Sale 3:

Sold for 10 keys + less than half a key in metal

Seller: https://backpack.tf/profiles/76561198992702849#!/compare/1585094400/1587168000

Buyer: https://backpack.tf/profiles/76561198363395191#!/compare/1587081600/1587168000

https://backpack.tf/item/7955812141

10 keys

Marketplace Sales:

https://marketplace.tf/items/tf2/383;5;u57

$24.95, March 3th

No snapshots available.

https://backpack.tf/item/7955658414

http://manic.tf/keyprice?at=2020-03-03&price=24.95 - $24.95 / $1.68 = 14.85 keys

Rounds to 15 keys.

Other Sales:

https://backpack.tf/item/7957026990 (#1)

https://backpack.tf/item/7955658414 (#2)

https://backpack.tf/item/3432856117 - mannco bot

https://backpack.tf/item/3263970860 - tradeit bot

#1

SCM

https://backpack.tf/profiles/76561198171968386#!/compare/1586822400/1587513600

https://backpack.tf/profiles/76561198171968386#!/compare/1586822400/1587513600

#2

Untraceable

https://backpack.tf/profiles/76561198286944082#!/compare/1581379200/1581638400

https://backpack.tf/profiles/76561198363395191#!/compare/1581552000/1581638400

Sellers/Buyers:

https://i.imgur.com/wT0g12k.png

https://backpack.tf/item/7955990080 - 22 keys

Buyers at 11+ keys

Sales at:

10

15

18

19

10 is well below buyers, excluding 10.

Taking 15-19.