History 1: https://backpack.tf/item/2711776699

Bulk for Max's Head:

https://backpack.tf/profiles/76561198137567696#!/compare/1627257600/1627344000

https://backpack.tf/profiles/76561199184202540#!/compare/1627257600/1627344000

Pro KS Brass Beast + 2 keys:

https://backpack.tf/profiles/76561199184202540#!/compare/1627776000/1627862400

https://backpack.tf/profiles/76561198231539200#!/compare/1627776000/1627862400

the Brass Beast will be ~4 keys https://gladiator.tf/sales?item=Professional%20Killstreak%20Brass%20Beast&at=2021-08-12T08:02:50.906Z

4+2=6, taking 6 keys here, matches buyout https://gladiator.tf/listings/61049bad483e99c7114a0566

Strange Delinquent's Down Vest matches:

https://backpack.tf/profiles/76561198231539200#!/compare/1627776000/1627862400

https://backpack.tf/profiles/76561198140382756#!/compare/1627776000/1627862400

~4 keys I guess https://gladiator.tf/sales?item=Strange%20Delinquent%27s%20Down%20Vest&at=2021-08-12T08:04:43.592Z

5 keys 15 ref:

https://backpack.tf/profiles/76561198140382756#!/compare/1627776000/1627862400

https://backpack.tf/profiles/76561199080879250#!/compare/1627776000/1627862400

will round down to 5 keys based on keys at the time of the sale https://gladiator.tf/listings/61070cbd8fd3dd65c6401187

5 keys 33 ref:

https://backpack.tf/profiles/76561199080879250#!/compare/1627862400/1627948800

https://backpack.tf/profiles/76561198390770929#!/compare/1627862400/1627948800

https://imgur.com/l8vk4u3

rounds to 5.5 keys

History 2: https://backpack.tf/item/2690047114

tradebacked then listed on mptf

History 3: https://backpack.tf/item/3626022298

Untraceable/Bulk:

https://backpack.tf/profiles/76561199099031605#!/compare/1623110400/1623196800

https://backpack.tf/profiles/76561198361622579#!/compare/1618444800/1624233600

History 4: https://backpack.tf/item/9355148856

Dumped to Quicksell.Store:

https://backpack.tf/profiles/76561199031648310#!/compare/1623283200/1625788800

https://backpack.tf/profiles/76561199111073161#!/compare/1623196800/1623283200

5 keys:

https://backpack.tf/profiles/76561199111073161#!/compare/1625356800/1625443200

https://backpack.tf/profiles/76561198042463504#!/compare/1625443200/1625529600

History 5: https://backpack.tf/item/8341611857

Added 17.77 ref for 6 keys:

https://backpack.tf/profiles/76561199110809353#!/compare/1623888000/1623974400

https://backpack.tf/profiles/76561198853647917#!/compare/1623888000/1623974400

Rounds to 5.5 keys

History 6: https://backpack.tf/item/7060000174

Untraceable:

https://backpack.tf/profiles/76561198961334857#!/compare/1622505600/1623801600

https://backpack.tf/profiles/76561199153277482#!/compare/1622419200/1622505600

Dumped to Quicksell.Store:

https://backpack.tf/profiles/76561199153277482#!/compare/1622419200/1622505600

https://backpack.tf/profiles/76561199111073161#!/compare/1622419200/1622505600

Untraceable:

https://backpack.tf/profiles/76561199111073161#!/compare/1622505600/1622592000

https://backpack.tf/profiles/76561198385969603#!/compare/1622851200/1622937600

History 7: https://backpack.tf/item/6700735096

Dumped to a bot:

https://backpack.tf/profiles/76561198059965592#!/compare/1624147200/1624665600

https://backpack.tf/profiles/76561198453530349#!/compare/1624060800/1624147200

last 2 trades are tradebacks so yeah

https://marketplace.tf/items/tf2/1111;5;u3048

June 10: $14.99/1.93=7.77 ~8 keys

Sales at 4, 5, 5, 5.5, 5.5, 6, 8

8 is obviously an outlier here, it's mptf and far apart from the other sales.

6 re-sold for ~4 so excluding, 4 is below buyers so excluding too

Gonna go with 5-5.5 keys despite the buyer at 5 keys since it's been a common trading point