All variants of this show up as Strange%20Decorated%20Weapon, so suggesting here

https://backpack.tf/item/4013762169

https://backpack.tf/profiles/76561198407997130#!/compare/1646092800/1646179200

https://backpack.tf/profiles/76561198258937500#!/compare/1646092800/1646179200

1:1 w/ Something Burning This Way Comes Stainless Pot, despite Foamy's previous comment, new mini for the Pot suggests it could actually be much higher at 835 keys https://backpack.tf/suggestion/626e15ce0c07b126ef048061

https://backpack.tf/profiles/76561198258937500#!/compare/1648166400/1648252800

https://backpack.tf/profiles/76561198431725617#!/compare/1648166400/1648252800

Strange Isotope Killstreak Brick House Minigun (Minimal Wear) (87, https://backpack.tf/suggestion/628f85aefd9e3816f94e1941)

+

Amaranthine Surgeon's Stahlhelm (460, https://backpack.tf/suggestion/628f80e559271c7ffc161c64)

+

Strange Cool Professional Killstreak Portal Plastered Tomislav (Factory New) (460, https://backpack.tf/suggestion/628f8364dd59df070c25d655)

+

White Strange Weight Room Warmer (~4)

=

1011 keys

Later sales suggest this may no longer be high

https://backpack.tf/profiles/76561198431725617#!/compare/1652400000/1652486400

https://backpack.tf/profiles/76561198177872379#!/compare/1652400000/1652486400

The Ooze Hong Kong Cone (850)

+

Amaranthine Field Practice (200)

https://backpack.tf/profiles/76561198431725617#!/compare/1653264000/1653436800

https://backpack.tf/profiles/76561198823641017#!/compare/1653350400/1653436800

Only other sale is bulk

https://backpack.tf/profiles/76561198310424539#!/compare/1643760000/1643846400

Outdated is also bulk

https://gladiator.tf/time-machine?item=Amaranthine%20Field%20Practice&at=2022-05-26T14:01:40.234Z

Taking buyer at 200 keys

=

1050 keys

This sale is likely undervalued, still supports a higher value

https://backpack.tf/profiles/76561198177872379#!/compare/1652400000/1652486400

https://backpack.tf/profiles/76561198043746862#!/compare/1653264000/1653350400

https://marketplace.tf/items/tf2/15055;15;u704;w3;pk55;strange;kt-3;festive

https://manic.tf/keyprice/?at=2022-05-24&price=2500

$2500 / $1.77 = 1412.43 keys

Sales:

835

1011

1050

1412

The value of the Pot is arguably discrepant, should we exclude it, it would also warrant excluding the high 1412 Marketplace sale. After rounding, we are left with a range of 1000 - 1050 keys.