Marketplace.TF Sales:

https://marketplace.tf/items/tf2/1183;5;u3071

https://marketplace.tf/items/tf2/5021;6

Sale 1:

https://backpack.tf/item/6708130458

$17.99/$1.79 = ~10 Keys (Nov 24)

Sale 2:

https://backpack.tf/item/10879857353

$17.99/$1.75 = ~10 Keys (Dec 21)

Sale 3:

https://backpack.tf/item/6286624074

$17.99/$1.79 = ~10 Keys (Jan 4)

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Item 4:

https://backpack.tf/item/10774881828

Sale 4:

Sold for 7 Keys (Buyer's compare shows the keys; Seller used 2 of the keys were used to buy the Strange Professional Killstreak Detonator from aboOod)

https://gladiator.tf/sales?item=Aurora%20Australis%20Taunt:%20Yeti%20Smash&at=2025-01-09T01:34:51.242Z

https://backpack.tf/profiles/76561199107865875#!/compare/1733616000/1733702400

https://backpack.tf/profiles/76561198822734643#!/compare/1733702400/1734566400

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Total Sales

7, 10, 10, 10

https://imgur.com/2Yfh5uC

Taking 7 - 10 Keys