Month 1 https://gladiator.tf/sales?item=Ancient%20Codex%20Universal%20Translator&at=2022-06-10T22:26:04.565Z

1 @ 14 keys 24.44 ref

Month 2 https://gladiator.tf/sales?item=Ancient%20Codex%20Universal%20Translator&at=2022-05-10T22:26:04.565Z

1 @ 13 keys 64.55 ref

1 @ 15 keys

Month 3 https://gladiator.tf/sales?item=Ancient%20Codex%20Universal%20Translator&at=2022-04-10T22:26:04.565Z

1 @ 13 keys 48.66 ref

1 @ 13 keys 49.66 ref

1 @ 14 keys 10 ref

1 @ 14 keys 56 ref

https://marketplace.tf/items/tf2/30658;5;u98

$31.99 / $1.74 = 18.39 keys

$29.99 / $1.74 = 17.24 keys

$31.99 / $1.74 = 18.39 keys

$31.99 / $1.74 = 18.39 keys

$31.99 / $1.73 = 18.49 keys

$34.99 / $1.78 = 19.66 keys

$34.99 / $1.76 = 19.88 keys

https://mannco.store/item/440-ancient-codex-unusual-universal-translator

Outdated

Classies:

https://gladiator.tf/time-machine?item=Ancient%20Codex%20Universal%20Translator&at=2022-06-10T22:26:56.253Z

Buyers at ~14, two sellers round up to ~17

https://gladiator.tf/time-machine?item=Ancient+Codex+Universal+Translator&at=2022-06-02T02%3A53%3A00.000Z

Lower sellers from a few days ago

Blaze:

https://marketplace.tf/items/tf2/30658;5;u98 - new sales at $34.99 (19 keys), $34.99 (19 keys), $34.99 (20 keys)

also a current seller at $34.99 (19 keys)

14 - 19 will probably be better here.