Item 1: https://backpack.tf/item/1210325022

Sale 1: Sold for a Blades of Betrayal Bumble Beenie and a Galactic Connection Taunt: Rock, Paper, Scissors

https://backpack.tf/profiles/76561198046705664#!/compare/1762992000/1763164800

https://backpack.tf/profiles/76561198838788284#!/compare/1762819200/1763164800

Blades of Betrayal Bumble Beenie is in-date at 224.5k

Galactic Connection Taunt: Rock, Paper, Scissors is in-date at 86k.

224.5 + 86 = 310.5k for Sale 1

Sale 2: Untrace

https://backpack.tf/profiles/76561198046705664#!/compare/1765670400/1767312000

https://backpack.tf/profiles/76561199219167928#!/compare/1766448000/1766534400

Classifieds link (1/30): https://imgur.com/a/pLKMCQF

Classifieds link (2/26): https://imgur.com/a/zMhC5UV

One sale at 310.5k, rounding this up to 311k and taking that for the sole value.