This is actually the 44th suggestion, I wrote 27 in two suggestions. Squad 3.

1 year outdated.

Untrace

https://backpack.tf/profiles/76561198870955849#!/compare/1585612800/1589068800

https://backpack.tf/profiles/76561198080179568#!/compare/1588982400/1589068800

Untrace

https://backpack.tf/profiles/76561198080179568#!/compare/1590624000/1590710400

https://backpack.tf/profiles/76561198398383076#!/compare/1590105600/1590710400

Sold for 38 keys + 9.88 refined

https://backpack.tf/profiles/76561198398383076#!/compare/1590710400/1590883200

https://backpack.tf/profiles/76561198080179568#!/compare/1590796800/1590883200

Rounds to 38 keys

Bulk

https://backpack.tf/profiles/76561198080179568#!/compare/1590969600/1591056000

https://backpack.tf/profiles/76561198091502579#!/compare/1590969600/1591056000

https://imgur.com/5VgxqHd

Untrace

https://backpack.tf/profiles/76561198126887938#!/compare/1587340800/1587427200

https://backpack.tf/profiles/76561198853242943#!/compare/1586563200/1590019200

Sold on 6/9/2020 for $99.99 / $1.99 = 50.25 keys ~ 50 keys

Sold on 6/21/2020 for $55.22 / $1.99 = 27.75 ~ 28 keys

https://marketplace.tf/items/tf2/30814;5;u108

Classifieds:

https://gyazo.com/495e712d6115d6d2385de250bef540c6

1 @ 28 keys

1 @ 38 keys

1 @ 50 keys

Highest buyers range from 33.26 to 38.25 keys. Excluding 28 and 38.

Taking 50 keys.