Sale 1:

https://backpack.tf/profiles/76561198352662057#!/compare/1609804800/1610236800

https://backpack.tf/profiles/76561198131066806#!/compare/1609804800/1609891200

= 24 Keys.

Sale 2:

https://backpack.tf/profiles/76561198131066806#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561198123631904#!/compare/1610409600/1610496000

Untrace / Bulk

Sale 3:

https://backpack.tf/profiles/76561198123631904#!/compare/1610928000/1611100800

https://backpack.tf/profiles/76561198131066806#!/compare/1611014400/1611100800

Untrace.

Sale 4:

https://backpack.tf/profiles/76561198131066806#!/compare/1611792000/1611878400

https://backpack.tf/profiles/76561198074718149#!/compare/1611792000/1611878400

Untrace.

Sale 5:

https://backpack.tf/profiles/76561197961976244#!/compare/1610064000/1610150400

https://backpack.tf/profiles/76561198047941585#!/compare/1610064000/1610150400

SCM, Untrace

Sale 6:

https://backpack.tf/profiles/76561198047941585#!/compare/1614470400/1614556800

https://backpack.tf/profiles/76561197970896022#!/compare/1614470400/1614556800

Sold for Abduction Universal Translator (19.5)

= 20 Keys.

Sale 7:

https://backpack.tf/profiles/76561197970896022#!/compare/1615161600/1615334400

https://backpack.tf/profiles/76561198177872379#!/compare/1615248000/1615334400

Sold for Fragmenting Reality Telefragger Toque - https://gyazo.com/aa540566b398cca2da8fa1aeb95bd0cc

If use there, it will be high and if I use it here it'll be low.

Sales: 20, 24

Excluding 20 since the buyer then sold it for something worth less.

Going with 24 keys.