Sale 1:

Sold for 6 keys

https://backpack.tf/profiles/76561198189661415#!/compare/1728604800/1728950400

https://backpack.tf/profiles/76561197962261994#!/compare/1728864000/1728950400

https://backpack.tf/item/13891192428

= 6 keys

Sale 2:

Sold with half a key in metal for 6 keys

https://backpack.tf/profiles/76561199026390261#!/compare/1731801600/1731888000 - Near ID: 15148440667

https://backpack.tf/profiles/76561198203205792#!/compare/1731801600/1731888000

https://backpack.tf/item/14949640781

= 5.5 keys

Sale 3:

Sold with negligible metal for 5 keys

https://backpack.tf/profiles/76561199581722058#!/compare/1732233600/1732320000

https://backpack.tf/profiles/76561198097843248#!/compare/1732233600/1732320000

https://backpack.tf/item/12672563898

= 5 keys

Sale 4:

Sold for 5 keys

https://backpack.tf/profiles/76561198865363506#!/compare/1731024000/1731110400

https://backpack.tf/profiles/76561198061622511#!/compare/1730851200/1731110400

https://backpack.tf/item/12429018481

= 5 keys

Sale 5:

Sold for 4 keys

https://backpack.tf/profiles/76561198199137143#!/compare/1729382400/1729468800

https://backpack.tf/profiles/76561199023509886#!/compare/1729382400/1729468800

https://backpack.tf/item/15015797038

= 4 keys

Sale 6:

Sold for 4 keys

https://backpack.tf/profiles/76561198075326117#!/compare/1731974400/1732060800

https://backpack.tf/profiles/76561199581722058#!/compare/1731974400/1732060800

https://backpack.tf/item/12672563898

= 4 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199023509886#!/compare/1731196800/1731283200

https://backpack.tf/profiles/76561198425724227#!/compare/1731110400/1732752000

https://backpack.tf/item/15015797038

Untraceable

#2

https://backpack.tf/profiles/76561198123435100#!/compare/1731196800/1731283200

https://backpack.tf/profiles/76561198123435100#!/compare/1731196800/1731283200

https://backpack.tf/item/14949640781

Untraceable/Bulk

#3

https://backpack.tf/profiles/76561198043444428#!/compare/1728518400/1728604800

https://backpack.tf/profiles/76561198289671052#!/compare/1686441600/1731542400

https://backpack.tf/item/14677575060

Untraceable

#4

https://backpack.tf/profiles/76561199174635222#!/compare/1728604800/1728777600

https://backpack.tf/profiles/76561199579303448#!/compare/1728604800/1728777600

https://backpack.tf/item/13965975361

Untraceable

#5

https://backpack.tf/profiles/76561198425714292#!/compare/1728691200/1728777600

https://backpack.tf/profiles/76561199728053253#!/compare/1728691200/1728864000

https://backpack.tf/item/13939003383

Untraceable

#6

https://backpack.tf/profiles/76561199728053253#!/compare/1728864000/1728950400

https://backpack.tf/profiles/76561198044519718#!/compare/1725062400/1729468800

https://backpack.tf/item/13939003383

Untraceable

#7

https://backpack.tf/profiles/76561198212703000#!/compare/1730505600/1730592000

https://backpack.tf/profiles/76561198040965652#!/compare/1730419200/1730505600

https://backpack.tf/item/13662850193

Backpack buy

#8

https://backpack.tf/profiles/76561199307374254#!/compare/1731024000/1731110400

https://backpack.tf/profiles/76561198193707370#!/compare/1731110400/1731542400

https://gladiator.tf/sales?item=Mystic%20Fusion%20Taunt:%20Russian%20Rubdown&at=2024-12-07T00:39:58.907Z - labelled as 7 keys

https://backpack.tf/item/12527387752

Untraceable

#9

https://backpack.tf/profiles/76561198050412790#!/compare/1733356800/1733443200

https://backpack.tf/profiles/76561198054198170#!/compare/1733011200/1733443200

https://backpack.tf/item/12452946177

Bulk for Heavy Rain Victory Lap

#10

https://backpack.tf/profiles/76561198246096512#!/compare/1730937600/1731024000

https://backpack.tf/profiles/76561198865363506#!/compare/1730937600/1731024000

https://backpack.tf/item/12429018481

Bulk-ish for keys

Sellers:

https://i.imgur.com/ISpVrkC.png

https://backpack.tf/item/13450796604 - 12 keys

https://backpack.tf/item/13662850193 - marketplace

Sales at:

4 (2x)

5 (2x)

5.5

6

Buyers for any effect at ~4 keys, excluding 4.

Taking 5-6 keys.