Month 1 https://gladiator.tf/sales?item=Shrieking%20Shades%20Spooky%20Head-Bouncers&at=2022-06-10T22:54:19.498Z

Nothing

Month 2 https://gladiator.tf/sales?item=Shrieking%20Shades%20Spooky%20Head-Bouncers&at=2022-05-10T22:54:19.498Z

1 @ 16 keys

1 @ 26 keys

Month 3 https://gladiator.tf/sales?item=Shrieking%20Shades%20Spooky%20Head-Bouncers&at=2022-04-10T22:54:19.498Z

2 @ 19 keys 10 ref

1 @ 19 keys 38.22 ref

1 @ 21 keys

2 @ 26 keys

https://marketplace.tf/items/tf2/31209;5;u192

$49.99 / $1.77 = 28.24 keys

https://mannco.store/item/440-shrieking-shades-unusual-spooky-head-bouncers

$19.28 / $1.61 = 11.98 keys

Classies: https://gladiator.tf/time-machine?item=Shrieking+Shades+Spooky+Head-Bouncers&at=2022-06-10T08%3A51%3A00.000Z

Buyers at ~15, sellers at 23 and 24

https://gladiator.tf/time-machine?item=Shrieking+Shades+Spooky+Head-Bouncers&at=2022-06-07T06%3A09%3A00.000Z

New 23 and 24 sellers have only been up for a few days, so still inclined to include the three sales at 26

Cash sales seem like outliers on either end. Going with all pure sales at 16 - 26 keys.