Item 1:

https://backpack.tf/item/15174530391

Sale 1:

Untraceable

https://backpack.tf/profiles/76561198208743000#!/compare/1732579200/1737331200

https://backpack.tf/profiles/76561199564942025#!/compare/1732492800/1732579200

Sale 2:

Sold for 26 Keys

https://backpack.tf/item/15091856684 (Key ID: "15192230785")

https://backpack.tf/profiles/76561199564942025#!/compare/1732924800/1733011200

https://backpack.tf/profiles/76561198068543310#!/compare/1733011200/1733097600

Sale 3:

Sold for 23 Keys (Unusual ID: "15356991686")

https://backpack.tf/profiles/76561198068543310#!/compare/1736640000/1736899200

https://backpack.tf/profiles/76561198054270952#!/compare/1736812800/1736899200

//

Item 2:

https://backpack.tf/item/14729843563

Sale 4:

48.33 ref traceable

https://backpack.tf/profiles/76561199455987525#!/compare/1736812800/1736985600

https://backpack.tf/profiles/76561199536459741#!/compare/1736812800/1736899200

Sale 5:

Untraceable

https://backpack.tf/profiles/76561199536459741#!/compare/1736812800/1736899200

https://backpack.tf/profiles/76561199087203575#!/compare/1736121600/1737244800

Sale 6:

Bulk for Playful Aurora Bomb Beanie

https://backpack.tf/profiles/76561199087203575#!/compare/1737244800/1737331200

https://backpack.tf/profiles/76561199482962726#!/compare/1737158400/1737244800

//

Item 3:

https://backpack.tf/item/14697419864

Sale 7:

Bulk for Smoking Master's Yellow Belt

https://backpack.tf/profiles/76561198011649963#!/compare/1731283200/1731369600

Sale 8:

Untraceable

https://backpack.tf/profiles/76561198146080783#!/compare/1731542400/1731628800

//

Item 4:

https://backpack.tf/item/15164102125

Sale 9:

Bulk for Pumpkin Moon Head of Defense

https://backpack.tf/profiles/76561198803144794#!/compare/1734998400/1735084800

https://backpack.tf/profiles/76561198120672630#!/compare/1734998400/1735084800

//

Item 5:

https://backpack.tf/item/14803989166

Sale 10:

Sold for 24 Keys (Unusual ID: "15060333474")

https://backpack.tf/profiles/76561198311498888#!/compare/1729728000/1729814400

https://backpack.tf/profiles/76561198377298887#!/compare/1729641600/1729814400

Sale 11:

Untraceable

https://backpack.tf/profiles/76561198377298887#!/compare/1729900800/1729987200

https://backpack.tf/profiles/76561198414939763#!/compare/1718496000/1733616000

Sale 12:

Untraceable

https://backpack.tf/profiles/76561198414939763#!/compare/1733616000/1737244800

https://backpack.tf/profiles/76561198415564349#!/compare/1733616000/1733702400

//

Marketplace.TF Sales:

https://marketplace.tf/items/tf2/31461;5;u348

https://marketplace.tf/items/tf2/5021;6

Sale 13:

https://backpack.tf/item/14937329960

$59.99/$1.75 = 34.28 → 34 Keys (Dec 11)

Sale 14:

https://backpack.tf/item/14890339800

$46/$1.76 = 26.14 → ~26 Keys (Jan 17)

//

Total Sales

23, 24, 26, 26, 34

https://imgur.com/i0j7jvx

With a MPTF seller @ $49.99 (~28 Keys), excluding 34

Taking 23 - 26 Keys

Unsolds:

https://backpack.tf/item/14796363063 — $49.99

https://backpack.tf/item/14773665543 — 45

https://backpack.tf/item/14729843563 — 45

https://backpack.tf/item/15164102125 — 999