Item 1: https://backpack.tf/item/7260316974

Sale 1: Bulk

https://backpack.tf/profiles/76561198121536574#!/compare/1764547200/1767484800

https://backpack.tf/profiles/76561198177872379#!/compare/1764547200/1764806400

Sale 2: Untrace

https://backpack.tf/profiles/76561198177872379#!/compare/1765497600/1765584000

https://backpack.tf/profiles/76561198135483308#!/compare/1765497600/1765584000

Sale 3: Sold alongside a Morning Glory Tartan Tyrolean and a Green Energy Demoman's Fro for a Stormy 13th Hour Demoman's Fro

https://backpack.tf/profiles/76561198135483308#!/compare/1765670400/1765756800

https://backpack.tf/profiles/76561198088063575#!/compare/1765584000/1765756800

Better used for updating the 13th Fro.

Sale 4: Sold for a Nebula Universal Translator, a Hot Professional Killstreak Frozen Aurora Sniper Rifle (Factory New), an Eerie Orbiting Fire Fancy Fedora, and a Dead Head

https://backpack.tf/profiles/76561198088063575#!/compare/1765929600/1766016000

https://backpack.tf/profiles/76561198025018960#!/compare/1765929600/1766102400

The Hot Pro KS Frozen Aurora Sniper FN was sold 3d later in a bulk deal:

https://backpack.tf/item/10741532347

Trade on the 20th involving the sniper:

https://backpack.tf/profiles/76561198088063575#!/compare/1766102400/1766188800

https://backpack.tf/profiles/76561198872222015#!/compare/1766102400/1766188800

550k is unrelated, and is received for a DBD Team Captain. It would be bulk in the deal for the Poisoned Shadows Executioner w/ Headless Horseshoes, alongside an Amaranthine War Pig and a Circling Heart Pyromancer's Mask with Spectral Spectrum and Gangreen Footprints.

Amaranthine War Pig is in-date (by one day!) at 1100k.

For our double spelled Circling Heart Pyromancer's Mask, it was bulked for a Misty Skull Hat with No Name, and has not moved since. Would have to take buyers of the spelled variant at 501k.

Given that the movements for the Executioner are messy due to dupes, the CHeart Pyromancer's is already massively undervalued at buyers, AND that the movement of the sniper was bulk in nature, I'd opt to use the second movement here:

The only other movement is the sale after, where it sells alongside a Cool Specialized Killstreak Skull Cracked Rocket Launcher (Minimal Wear) for 375k. The Cool Skull Cracked RL was bought from STN a day prior for 36 and some ref, seen here:

https://backpack.tf/profiles/76561199026390261#!/compare/1767139200/1767225600

It's been unsold at 75k for 2 months, no buyers, STN buyers at 33k. Given the duration of unsolds, this is just slightly better than taking buyers (of which there are none), and an approximation here is fine since our above bulk movement would be far off base.

375k - 36k = 339k for this movement, and for the Hot Frozen Aurora Sniper.

Nebula Universal Translator open suggestion can be found here: https://backpack.tf/suggestion/69a4b6cb837aa3c44d001467

Taking midpoint of 485.5k.

Eerie Orbiting Fire Fancy Fedora is in-date at 150k.

Dead Head is in-date at 13.15k.

Total for Sale 4: 485.5 + 339 + 150 + 13.15 = 987.65k

Sale 5: Sold alongside an Eerie Orbiting Fire Flamboyant Flamenco and a Burning Flames Deep Cover Operator for a Strange Cloudy Moon Anger

https://backpack.tf/profiles/76561198057452720#!/compare/1768262400/1768608000

https://backpack.tf/profiles/76561198025018960#!/compare/1768521600/1768608000

This is being used for the CMoon Anger.

Classifieds link: https://imgur.com/a/BnlaL8X

One sale at 987.65k, rounding this up to 1000k in the case of issues with open suggestion or valuation of the Hot Sniper Rifle, and taking that for the sole value.