Using sales from the last 3 months, due to lack of sales within the last 2.

Sale 1:

Sold for 8 keys

https://backpack.tf/profiles/76561199004799979#!/compare/1701907200/1701993600 - Near ID: 13877460319

https://backpack.tf/profiles/76561198086855695#!/compare/1701302400/1704499200

https://gladiator.tf/sales?item=Screaming%20Tiger%20Taunt:%20Fresh%20Brewed%20Victory&at=2023-12-08T02:44:17.859Z - gladiator confirms

https://backpack.tf/item/3591053312

= 8 keys

Sale 2:

Sold for 7 keys

https://backpack.tf/profiles/76561198096860013#!/compare/1705622400/1705795200

https://backpack.tf/profiles/76561198350267590#!/compare/1705536000/1705622400

https://backpack.tf/item/3719467012

= 7 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198309234116#!/compare/1703548800/1704672000

https://backpack.tf/profiles/76561199099521803#!/compare/1704585600/1704672000

https://backpack.tf/item/12645753256

Bulk for Gold Pan

#2

https://backpack.tf/profiles/76561198107625559#!/compare/1704931200/1705104000

https://backpack.tf/profiles/76561198013975080#!/compare/1704931200/1705276800

https://backpack.tf/item/7071612008

Untraceable

#3

https://backpack.tf/profiles/76561198327995316#!/compare/1704844800/1706832000

https://backpack.tf/profiles/76561198177872379#!/compare/1706745600/1706832000

https://backpack.tf/item/2828373457

Backpack buy

#4

https://backpack.tf/profiles/76561198119658844#!/compare/1707004800/1707177600

https://backpack.tf/profiles/76561198153496203#!/compare/1706832000/1707004800

https://backpack.tf/item/2791517407

Bulk/backpack buy or something

#5

https://backpack.tf/profiles/76561198413762524#!/compare/1700092800/1701302400

https://backpack.tf/profiles/76561199128560410#!/compare/1701216000/1701302400

https://gladiator.tf/sales?item=Screaming%20Tiger%20Taunt:%20Fresh%20Brewed%20Victory&at=2023-12-01T02:44:17.859Z - labelled as 3 keys + 12 ref

https://backpack.tf/item/12861029042

Untraceable. 3 keys match on the seller's end.

#6

https://backpack.tf/profiles/76561199128560410#!/compare/1701302400/1701388800

https://backpack.tf/profiles/76561198073386321#!/compare/1701561600/1701907200

https://backpack.tf/item/12861029042

Untraceable, probably sold on marketplace

#7

https://backpack.tf/profiles/76561199074285139#!/compare/1701216000/1701302400

https://backpack.tf/profiles/76561198122226417#!/compare/1700611200/1701216000

https://backpack.tf/item/10588779410

Untraceable

#8

https://backpack.tf/profiles/76561198030654668#!/compare/1702166400/1703030400

https://backpack.tf/profiles/76561198135388328#!/compare/1702080000/1702166400

https://backpack.tf/item/7071612008

Untraceable

#9

https://backpack.tf/profiles/76561198135388328#!/compare/1702857600/1702944000

https://backpack.tf/profiles/76561198107625559#!/compare/1702857600/1702944000

https://backpack.tf/item/7071612008

Sold on scrap for 3 keys + some metal?

#10

https://backpack.tf/profiles/76561198086587715#!/compare/1703462400/1704499200

https://backpack.tf/profiles/76561198093177263#!/compare/1703462400/1703548800

https://backpack.tf/item/6422099119

Untraceable, 3 keys match

#11

https://backpack.tf/profiles/76561199180460273#!/compare/1700870400/1700956800

https://backpack.tf/profiles/76561199230784126#!/compare/1700870400/1700956800

https://backpack.tf/item/4015332552

Backpack buy

#12

https://backpack.tf/profiles/76561198094041769#!/compare/1700611200/1701129600

https://backpack.tf/profiles/76561199004799979#!/compare/1701043200/1701129600

https://gladiator.tf/sales?item=Screaming%20Tiger%20Taunt:%20Fresh%20Brewed%20Victory&at=2023-11-29T02:44:17.859Z - labelled as 3 keys + 12 ref

https://backpack.tf/item/3591053312

Untraceable

Marketplace Sales:

https://marketplace.tf/items/tf2/1113;5;u3006

$15.99, December 7th

$15, Jan 14th

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

$1.74, December 7th

$1.68, Jan 14th

15.99/1.74 = ~9.2, rounds to 9

15/1.68 = ~8.9, rounds to 9

Sellers:

https://marketplace.tf/items/tf2/1113;5;u3006

https://backpack.tf/item/2828373457 - marketplace

https://backpack.tf/item/2734275225 - marketplace

Sales at:

7

8

9 (2x, marketplace)

Taking 7-9 keys.