https://backpack.tf/item/11103630163

https://backpack.tf/profiles/76561198354523202#!/compare/1640995200/1641168000

https://backpack.tf/profiles/76561198090251227#!/compare/1641081600/1641168000

Untrace

https://backpack.tf/profiles/76561198090251227#!/compare/1641859200/1642118400

https://backpack.tf/profiles/76561198080436316#!/compare/1642032000/1642118400

https://gladiator.tf/listings/61d786991ce136dbd4dac680

~120 keys (credits to Master)

https://backpack.tf/item/4478142073

https://marketplace.tf/items/tf2/480;5;u89

$299.99/1.83=163.93, rounds to 165 keys.

120-165.

gum verbally confirmed the first sale was a quicksell for 80 keys: https://gyazo.com/5c20483d063df952f1255c05a5ea8c83

There's also a new sale that seems to be:

https://backpack.tf/profiles/76561198080436316#!/compare/1642118400/1642291200

https://backpack.tf/profiles/76561198055622215#!/compare/1642204800/1642291200

Shanter + 12 keys for G. Robo-Sandvich

Robo-Sandvich recently sold for ~123 keys: https://gladiator.tf/sales?item=Genuine%20Robo-Sandvich&at=2022-01-22T08:03:43.119Z

so this sale would probably round to 110.

May be best to leave this open for a bit.