Item 1: https://backpack.tf/item/13474985864

Sale 1:

https://backpack.tf/profiles/76561198058356352#!/compare/1755216000/1755302400

https://backpack.tf/profiles/76561198061147031#!/compare/1752451200/1755388800

5 keys

Item 2: https://backpack.tf/item/13472538620

Sale 2:

https://backpack.tf/profiles/76561199072654974#!/compare/1748995200/1749081600

https://backpack.tf/profiles/76561198044060669#!/compare/1748304000/1752192000

1 reclaimed matches

Item 3: https://backpack.tf/item/13358990456

Sale 3:

https://backpack.tf/profiles/76561199026390261#!/compare/1755302400/1755388800

https://backpack.tf/profiles/76561199017959799#!/compare/1755129600/1755302400

untrace

Sale 4:

https://backpack.tf/profiles/76561199017959799#!/compare/1755561600/1755648000

https://backpack.tf/profiles/76561199093120769#!/compare/1753833600/1755820800

bulk

Sale 5:

https://backpack.tf/profiles/76561199093120769#!/compare/1755820800/1755907200

https://backpack.tf/profiles/76561199429521851#!/compare/1755820800/1755907200

looks like a fake Mannco bot

Marketplace.tf: https://marketplace.tf/items/tf2/30918;5;u3115

Items 4 & 5: https://backpack.tf/item/6497963973 https://backpack.tf/item/13292927000

Sale 6:

Sold for $10.88 on July 29 2025

Keys were $1.93 https://marketplace.tf/items/tf2/5021;6

10.88/1.93=5.64 ~5.5 keys

Sale 7:

Sold for $10.88 on August 16 2025

Keys were $1.81

10.88/1.81=6.01 ~6 keys

Sales:

5, 5.5, 6

Sellers:

BPTF - https://imgur.com/n4atcKv 6 keys

MPTF - https://marketplace.tf/items/tf2/30918;5;u3115 none

STN - https://stntrading.eu/item/tf2/Unusual%20Deepsea%20Rave%20Taunt:%20Surgeon's%20Squeezebox none

SCM - https://steamcommunity.com/market/listings/440/Unusual%20Taunt%3A%20Surgeon%27s%20Squeezebox?filter=Deepsea+Rave https://imgur.com/GakVbPb none

Going with 5-6 keys