This was so random...

Thanks Explocivo808 for help!

Item history: https://backpack.tf/item/14191759968

I traded it for Australium Wrench.

Proof: https://imgur.com/a/jhuTPvm

No previous sales

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Australium Wrench

Gladiator sales: https://imgur.com/a/knr7zLQ

Taking an average 33.3 keys

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Rounding to 33 keys

Let me know if something wrong :)