Item 1

https://backpack.tf/item/12280228025

Sale 1

https://scrap.tf/item/Massed-Flies-Cotton-Head

https://backpack.tf/profiles/76561198135388328#!/compare/1674345600/1674432000

https://backpack.tf/profiles/76561198139831684#!/compare/1674432000/1674518400

Untraceable on buyer's side, I can match part of what I assume to be ~15 keys

Sale 2

https://backpack.tf/profiles/76561198139831684#!/compare/1674432000/1674518400

https://backpack.tf/profiles/76561198145990192#!/compare/1674518400/1674604800

Untraceable on seller's side

Sale 3

https://backpack.tf/profiles/76561198145990192#!/compare/1674691200/1674777600

https://backpack.tf/profiles/76561198313722516#!/compare/1672790400/1674777600

No clue

Sale 4

https://gladiator.tf/time-machine?item=Massed%20Flies%20Cotton%20Head&at=2023-01-27T23:45:56.000Z

https://backpack.tf/profiles/76561198313722516#!/compare/1674777600/1674864000

https://backpack.tf/profiles/76561198850178158#!/compare/1674777600/1674864000

Big bulk of 67 keys matches, buy order is at ~16 keys however

Sale 5

https://backpack.tf/profiles/76561198850178158#!/compare/1676419200/1676505600

https://backpack.tf/profiles/76561198311498888#!/compare/1676505600/1676592000

No clue

Item 2

https://backpack.tf/item/12061046582

Ignoring gambling....

Sale 6

https://backpack.tf/profiles/76561198312305282#!/compare/1670889600/1670976000

https://backpack.tf/profiles/76561198275478002#!/compare/1670803200/1670976000

?

Sale 7

https://backpack.tf/profiles/76561198275478002#!/compare/1670976000/1671148800

https://backpack.tf/profiles/76561198091502579#!/compare/1671062400/1671235200

?

Sale 8

https://backpack.tf/profiles/76561198091502579#!/compare/1671667200/1672185600

https://backpack.tf/profiles/76561198992115562#!/compare/1671753600/1675036800

?

Item 3

https://backpack.tf/item/5382990763

Just gambling

Item 4

https://backpack.tf/item/4470126441

Sale 9

https://backpack.tf/profiles/76561198311498888#!/compare/1670803200/1670889600

https://backpack.tf/profiles/76561198050518375#!/compare/1670716800/1670803200

Untrace on buyer's side

Sale 10

https://backpack.tf/profiles/76561198050518375#!/compare/1670803200/1670889600

https://backpack.tf/profiles/76561198447699163#!/compare/1669161600/1671062400

No clue

Sale 11

https://backpack.tf/profiles/76561198447699163#!/compare/1673308800/1674777600

https://backpack.tf/profiles/76561198379906251#!/compare/1674604800/1675036800

Untrace on buyer's side

Sale 12

https://gladiator.tf/time-machine?item=Massed%20Flies%20Cotton%20Head&at=2023-01-25T09:59:37.000Z

https://backpack.tf/profiles/76561198379906251#!/compare/1673913600/1674604800

https://backpack.tf/profiles/76561198453530349#!/compare/1674518400/1674604800

15 keys match here

Item 5

https://backpack.tf/item/3368645872

Ignoring gambling...

Sale 13

https://gladiator.tf/time-machine?item=Massed%20Flies%20Cotton%20Head&at=2023-02-05T23:51:26.000Z

https://backpack.tf/profiles/76561198983856237#!/compare/1675555200/1675641600

https://backpack.tf/profiles/76561199072654974#!/compare/1675641600/1675728000

Idk, gambling?

Mp.tf

https://marketplace.tf/items/tf2/30175;5;u12

https://manic.tf/keyprice/?at=2023-02-06&price=39.99

~20 keys

Total Sales

15, 15, 16, 20

4 months @18 says 20 is too high

Taking 16 keys flat?