Item

https://backpack.tf/item/3663612657

Movement 1

https://backpack.tf/profiles/76561198261483133#!/compare/1722556800/1722643200

Sale at 400 pure + 660 USD.

Only recent usable sale, incomplete compare (doesn't show all keys). The original buyer's inventory is private, so their compare is unusable (does not exist). Additional proof via screenshots below.

Screenshots

https://imgur.com/a/My7O2Ew

The link contains the following screenshots in order:

Chat agreement for how much extra cash would be sent.

400 pure for the item.

Transfer receipt with names blurred.

Movement 2

https://backpack.tf/profiles/76561198401301250#!/compare/1722556800/1722643200

The original buyer helped cover 400 keys for the trade; they're holding my eorb until I repay them; this movement isn't a sale.

Key mini courtesy of Icycrevasse. Thank you! (Modified to try and shorten links).

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Mini for a key price on Aug 3

Brom's forum post

https://backpack.tf/trust/76561198169960987

$1.60 & $1.52

Tony el gordo's forum post

https://backpack.tf/trust/76561198215879363

$1.54 & $1.56

-EAZ-Sousou57's forum post

https://backpack.tf/trust/76561198006544512

A few @ $1.56

Fiky's forum post

https://backpack.tf/trust/76561199041022874

$1.47?

Braxol's forum post

https://backpack.tf/trust/76561198120347528

$1.60 & $1.57

(1.60 + 1.52 + 1.54 + 1.56 + 1.56 + 1.47 + 1.6 + 1.57) / 8 = ~$1.55

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400 pure + 425 keys in cash (660/1.55) = 825 keys.

Taking 825 keys.