Month 1 https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2023-01-08T07:20:32.367Z

1 @ 4 keys 16.66 ref

3 @ 4 keys 24 ref

1 @ 5 keys 69.11 ref

Month 2 https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2022-12-08T07:20:32.367Z

1 @ 3 keys 40.55 ref

1 @ 8 keys 16.66 ref

Month 3 https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2022-11-08T07:20:32.367Z

Nothing

https://marketplace.tf/items/tf2/30919;5;u3003

$11.44 / $1.99 = 5.75 keys

$11.44 / $1.99 = 5.75 keys

$11.44 / $2.04 = 5.61 keys

$11.44 / $2.14 = 5.35 keys

Quite a few sellers at $11.44 (~5.65 keys)

https://mannco.store/item/440-holy-grail-unusual-taunt-the-skating-scorcher

$12.49 / $1.83 = 6.83 keys

$11.99 / $1.81 = 6.62 keys

$9.19 / $1.87 = 4.91 keys

$9.25 / $1.87 = 4.95 keys

$10.5 / $1.88 = 5.59 keys

$10.99 / $1.89 = 5.81 keys

$10.99 / $1.89 = 5.81 keys

$11.49 / $1.89 = 6.08 keys

$11.35 / $1.89 = 6.01 keys

$11.49 / $1.91 = 6.02 keys

$12.99 / $1.92 = 6.77 keys

https://backpack.tf/profiles/76561199225204025#!/compare/1671926400/1672012800

https://backpack.tf/profiles/76561198074744551#!/compare/1671667200/1672444800

https://gladiator.tf/time-machine?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2022-12-25T08:15:08.000Z

5 keys

https://backpack.tf/item/9766178647

https://gladiator.tf/time-machine?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2022-11-18T22:48:41.000Z

6 keys?

https://gladiator.tf/time-machine?item=Holy%20Grail%20Taunt:%20The%20Skating%20Scorcher&at=2023-01-08T07:29:30.630Z

Page of sellers down to ~5.65 keys, buyers ~4.15 - 4.35 keys

Going to run with sales from 4.25 - 5.6 keys.