Using last 3 months, no usable sales in the last 2 months.

Sale 1:

Sold for Strange Spec. KS Sniper Rifle (1.85) + Strange Field Tested Secretly Serviced Iron Bomber (1.55)

https://backpack.tf/profiles/76561198874905974#!/compare/1698796800/1698883200

https://backpack.tf/profiles/76561198165215368#!/compare/1698796800/1699401600

https://backpack.tf/item/10407859332

= 3.4 keys

Strange Spec. KS Sniper:

https://gladiator.tf/sales?item=Strange%20Specialized%20Killstreak%20Sniper%20Rifle&at=2023-11-01T16:12:28.500Z - Using last 24 hours.

1 bought at 1 key + 44.11 ref (~1.7 keys)

1 sold at 2 keys + 0.55 ref (~2 keys)

Taking 1.7-2 (1.85) for the Sniper Rifle.

Iron Bomber:

https://steamcommunity.com/market/listings/440/Strange%20Secretly%20Serviced%20Iron%20Bomber%20%28Field-Tested%29 (Using USD)

This sale occurred early November. I will use the sales that occurred in October to price this Iron Bomber.

$3.48, October 12th

$3.50, October 15th

$3.90, October 20th

https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key - Keys were:

$2.40, October 12th

$2.41, October 15th

$2.37, October 20th

3.48/2.4 = 1.45

3.5/2.41 = ~1.45

3.9/2.37 = ~1.65

Taking 1.45-1.65 (1.55) for the Iron Bomber.

Sale 2:

Sold with 6 ref (~0.1 keys) for 3 keys

https://backpack.tf/profiles/76561199072654974#!/compare/1698624000/1698710400

https://backpack.tf/profiles/76561199384080116#!/compare/1697587200/1698710400

https://backpack.tf/item/4962453256

= 2.9 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198038195270#!/compare/1701302400/1701475200

https://backpack.tf/profiles/76561198142423178#!/compare/1409554800/1702512000

https://backpack.tf/item/10954073825

Untraceable. Nearly 10 years difference in the buyer's compare links. Not important, just thought it was pretty cool.

#2

https://backpack.tf/profiles/76561198850274253#!/compare/1703462400/1703548800

https://backpack.tf/profiles/76561199240861805#!/compare/1702771200/1704067200

https://backpack.tf/item/8073867738

Untraceable

#3

https://backpack.tf/profiles/76561199384080116#!/compare/1701907200/1702425600

https://backpack.tf/profiles/76561198275314052#!/compare/1700956800/1702425600

https://backpack.tf/item/4962453256

Untraceable

#4

https://backpack.tf/profiles/76561199034782401#!/compare/1698278400/1698364800

https://backpack.tf/profiles/76561199192607141#!/compare/1698278400/1698364800

https://backpack.tf/item/12094291898

https://gladiator.tf/sales?item=Holy%20Grail%20Taunt:%20The%20Carlton&at=2023-10-27T15:48:50.561Z - labelled as 2 keys + 20.66 ref

Untraceable

#5

https://backpack.tf/profiles/76561199005381109#!/compare/1698710400/1698796800

https://backpack.tf/profiles/76561198874905974#!/compare/1698624000/1698710400

https://backpack.tf/item/10407859332

Untraceable

#6

https://backpack.tf/profiles/76561199084784906#!/compare/1700006400/1700092800

https://backpack.tf/profiles/76561199548756906#!/compare/1699315200/1700092800

https://backpack.tf/item/8073867738

Bulk

#7

https://backpack.tf/profiles/76561199548756906#!/compare/1700092800/1700179200

https://backpack.tf/profiles/76561198850274253#!/compare/1700006400/1700092800

https://backpack.tf/item/8073867738

Bulk again

#8

https://backpack.tf/profiles/76561198165215368#!/compare/1699574400/1699660800

https://backpack.tf/profiles/76561198200507177#!/compare/1699142400/1699660800

https://backpack.tf/item/10407859332

Sold with a key for a bunch of war paints. This sale's a bit junky, best to not use it.

https://backpack.tf/item/5396879892 - mannco

Marketplace Sales:

https://marketplace.tf/items/tf2/1168;5;u3003

$9.99, October 22nd, December 17th & January 16th.

These sales are gonna be 5+ keys each, well above the seller. Excluding them.

Sellers:

https://imgur.com/a/J4or4eX

https://backpack.tf/item/11064136266 - ~3.65 keys

Sales at:

2.9

3.4

Taking 2.9-3.4 keys.