Item 1:

https://backpack.tf/item/11097818301

Sale 1:

Sold for ~29 Keys (Unusual ID: "16064066710")

https://backpack.tf/profiles/76561198066311459#!/compare/1755302400/1755475200

https://backpack.tf/profiles/76561199026390261#!/compare/1755388800/1755475200

Sale 2:

Sold for 34 Keys 33 Ref → ~35 Keys (Buyer's compare)

https://backpack.tf/profiles/76561199026390261#!/compare/1756252800/1756339200

https://backpack.tf/profiles/76561198304445800#!/compare/1756252800/1756339200

Sale 3:

Sold for 35 Keys (Unusual ID: "16106478737")

https://backpack.tf/profiles/76561198304445800#!/compare/1756252800/1756339200

https://backpack.tf/profiles/76561198329439258#!/compare/1756252800/1756339200

Sale 4:

Sold alongside 22 Keys for Cloud 9 Conjurer's Cowl, which was then liquidated for 59 Keys → 37 Keys

https://backpack.tf/profiles/76561198329439258#!/compare/1756512000/1756598400

https://backpack.tf/profiles/76561199036758852#!/compare/1756512000/1756598400

https://backpack.tf/item/1931165182 — Cowl history:

https://backpack.tf/profiles/76561198180923509#!/compare/1756512000/1756598400 — Cowl sold for 59 Keys

Sale 5:

Sold for 36 Keys (Unusual ID: "16120663982")

https://backpack.tf/profiles/76561199036758852#!/compare/1756598400/1756684800

https://backpack.tf/profiles/76561198262585528#!/compare/1756598400/1756684800

Sale 6:

Bulk

https://backpack.tf/profiles/76561198262585528#!/compare/1757548800/1757635200

https://backpack.tf/profiles/76561199000372323#!/compare/1757462400/1757635200

Sale 7:

Bulk for Morning Glory Tyrant's Helm

https://backpack.tf/profiles/76561199000372323#!/compare/1757808000/1758067200

https://backpack.tf/profiles/76561198063640894#!/compare/1757980800/1758067200

//

Total Sales

35, 35, 36, 37

https://imgur.com/zHcq00Q

Excluding 37 since it resold for 1 key less

Taking 35 — 36 Keys

Unsolds:

https://backpack.tf/item/11097818301 — $108