Item 1:

https://backpack.tf/item/12412241003

Sale 1:

Sold for 65 Keys + sweets (Unusual ID: "15145357114")

https://backpack.tf/profiles/76561198331224889#!/compare/1731715200/1731801600

https://backpack.tf/profiles/76561198272131806#!/compare/1731283200/1731801600

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Item 2:

https://backpack.tf/item/12414928894

Sale 2:

Only metal traceable

https://backpack.tf/profiles/76561198257082566#!/compare/1732147200/1732233600

https://backpack.tf/profiles/76561198453530349#!/compare/1732147200/1732233600

Sale 2:

Sold for 64 Keys (Unusual ID: "15171954930")

https://backpack.tf/profiles/76561198453530349#!/compare/1732406400/1732492800

https://backpack.tf/profiles/76561198287556104#!/compare/1732492800/1735257600

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Item 3:

https://backpack.tf/item/12420761659

Skipping Glad bot → STN

Sale 3:

Sold for 67 Keys (Unusual ID: "15097200507")

https://backpack.tf/profiles/76561198311498888#!/compare/1730505600/1730592000

https://backpack.tf/profiles/76561198165597659#!/compare/1729814400/1730592000

Sale 4:

Sold alongside 41 Keys for Haunting Haze Field Practice

https://backpack.tf/profiles/76561198165597659#!/compare/1732060800/1732147200

https://backpack.tf/profiles/76561198311498888#!/compare/1732060800/1732147200

Sale 5:

Sold for 58 Keys

https://backpack.tf/item/9274723014 (Key ID: "15229996925")

https://backpack.tf/profiles/76561198311498888#!/compare/1733875200/1733961600

https://backpack.tf/profiles/76561198043996567#!/compare/1733961600/1734048000

//

Total Sales

58, 64, 65, 67

https://imgur.com/2U57k6k

Since 67 was essentially dumped (STN likely didn't value it @ 67; evident by selling for 58)

Taking 58 - 65 Keys