Item 1:

https://backpack.tf/item/923194585

Sale 1:

https://backpack.tf/profiles/76561198850407517#!/compare/1743984000/1744156800

https://backpack.tf/profiles/76561198337378097#!/compare/1744070400/1744156800

D@D HKC [indate at 785] + Spectral Fire Blast Defense [indate at 207] for BF Mining Light + 11 pure = 981 keys

Sale 2:

https://backpack.tf/profiles/76561198337378097#!/compare/1745107200/1745193600

https://backpack.tf/profiles/76561198071230830#!/compare/1745020800/1745193600

Seems like 750

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Item 2:

https://backpack.tf/item/757695443

Sale 3:

https://backpack.tf/profiles/76561198380818616#!/compare/1748044800/1748390400

https://backpack.tf/profiles/76561198252999692#!/compare/1748304000/1748390400

Bulk for Secret TC

750-981 I guess.