Sale 1:

Sold with 44.55 ref for 4 keys (~3.25 keys)

https://backpack.tf/profiles/76561199026390261#!/compare/1730246400/1730332800

https://backpack.tf/profiles/76561198310972287#!/compare/1730246400/1730332800

https://backpack.tf/item/14371589461

= 3.25 keys

Sale 2:

Sold with some metal for 3 keys

https://backpack.tf/profiles/76561199564942025#!/compare/1731456000/1731542400

https://backpack.tf/profiles/76561199081791855#!/compare/1731456000/1731542400

https://backpack.tf/item/14842270618

https://backpack.tf/item/15136114389

https://backpack.tf/item/15136114393

https://backpack.tf/item/15136114395

https://backpack.tf/item/15136114398

https://backpack.tf/item/15136114402

https://backpack.tf/item/15136114405 - the metal added with the taunt

= 2.9 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198251982584#!/compare/1730332800/1730505600

https://backpack.tf/profiles/76561199581722058#!/compare/1730419200/1730505600

https://backpack.tf/item/14842270618

Bulk for keys

#2

https://backpack.tf/profiles/76561199581722058#!/compare/1730678400/1730764800

https://backpack.tf/profiles/76561198868296867#!/compare/1730505600/1730764800

https://backpack.tf/item/14842270618

Sold for Magnifying Momentum Carlton

Don’t wanna use this without knowing the B/O, though it’s most likely less than 3, given the sale in #1.

#3

https://backpack.tf/profiles/76561198868296867#!/compare/1730851200/1730937600

https://backpack.tf/profiles/76561198384974332#!/compare/1730678400/1730851200

https://backpack.tf/item/14842270618

Untraceable

#4

https://backpack.tf/profiles/76561198384974332#!/compare/1730678400/1730851200

https://backpack.tf/profiles/76561199564942025#!/compare/1730764800/1730851200

https://backpack.tf/item/14842270618

Untraceable

#5

https://backpack.tf/profiles/76561198360433306#!/compare/1729641600/1729900800 - private backpack

https://backpack.tf/profiles/76561199026390261#!/compare/1729814400/1729900800

https://backpack.tf/item/14371589461

Untraceable

#6

https://backpack.tf/profiles/76561198269224449#!/compare/1730592000/1735948800

https://backpack.tf/profiles/76561199581722058#!/compare/1734912000/1734998400

https://backpack.tf/item/15008190690

Untraceable

#7

https://backpack.tf/profiles/76561199581722058#!/compare/1735344000/1735430400

https://backpack.tf/profiles/76561198219027272#!/compare/1735344000/1735430400

https://backpack.tf/item/15008190690

Untraceable

https://backpack.tf/item/14524769763 - gambled

Marketplace Sales:

https://marketplace.tf/items/tf2/31354;5;u3183

$9.99, December 30th

https://marketplace.tf/items/tf2/5021;6 - keys were $1.80

9.99/1.8 = 5.55

No current sellers.

Sales at:

2.9

3.25

5.55 (marketplace)

The cheaper sales sold pretty quickly, so I won’t rule 5.55 as an outlier.

Taking 2.9-5.55 keys.