Sale 1:

https://backpack.tf/profiles/76561198281261388#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198341171690#!/compare/1567209600/1567296000

QS

Sale 2:

https://backpack.tf/profiles/76561198341171690#!/compare/1568937600/1569024000

https://backpack.tf/profiles/76561198153789411#!/compare/1568851200/1569196800

Sold for ~20 keys

Sale 3:

https://backpack.tf/profiles/76561198153789411#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198125950723#!/compare/1570752000/1570838400

Bulky

Sale 4:

https://backpack.tf/profiles/76561198125950723#!/compare/1571011200/1571097600

https://backpack.tf/profiles/76561198303138234#!/compare/1571011200/1571097600

Sold with 2 keys for Cool WW Reckoner Revolver

used there

Sale 5:

https://backpack.tf/profiles/76561198303138234#!/compare/1571443200/1571616000

https://backpack.tf/profiles/76561198046921199#!/compare/1571270400/1571529600

Bulky

Sale 6:

https://backpack.tf/profiles/76561198046921199#!/compare/1571529600/1571616000

https://backpack.tf/profiles/76561198328711914#!/compare/1571529600/1571616000

Sold for PE Snaggle

use there

https://bot.tf/stats/listings/MVR9QE6E

B/O of 20 keys

Sale 7:

https://backpack.tf/profiles/76561198021272428#!/compare/1565654400/1565740800

https://backpack.tf/profiles/76561197996732143#!/compare/1565568000/1565740800

Sold for OF Topi(9) + Planets Fez

Fez Mini:

https://backpack.tf/suggestion/5dca69a467807229e162d34a

Suggestion for 9.5 keys

Total is 18.5 keys

https://bot.tf/stats/listings/MVR67OJW

B/O of 18 keys, capping

Sale 8:

https://backpack.tf/profiles/76561197996732143#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561198064011608#!/compare/1567382400/1567468800

Sold for 21 keys

Sale 9:

https://backpack.tf/profiles/76561198241305714#!/compare/1569888000/1572220800

https://backpack.tf/profiles/76561198006680272#!/compare/1569888000/1570060800

Untrace

Sale 10:

https://backpack.tf/profiles/76561198066252285#!/compare/1572652800/1572739200

https://backpack.tf/profiles/76561198155141647#!/compare/1486598400/1572739200

Untrace

Sale 11:

https://backpack.tf/profiles/76561198155141647#!/compare/1572739200/1572912000

https://backpack.tf/profiles/76561198129380689#!/compare/1572739200/1572825600

untrace

sale 12:

https://backpack.tf/profiles/76561198129380689#!/compare/1572825600/1572912000

https://backpack.tf/profiles/76561198965695956#!/compare/1572998400/1573257600

Untrace

Sale 13:

https://backpack.tf/profiles/76561198335368279#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198335510890#!/compare/1566691200/1566777600

Sold for Stormy Eyewear(17.5) + negligible sweets

Total is ~18 keys

https://bot.tf/stats/listings/MQ9WV861

B/O of 20 keys

Sale 14:

https://backpack.tf/profiles/76561198335510890#!/compare/1566777600/1566864000

https://backpack.tf/profiles/76561198137163870#!/compare/1566777600/1566864000

Sold for 15 keys

Sale 15:

https://backpack.tf/profiles/76561198137163870#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561198975648195#!/compare/1566518400/1567296000

Sold for TW chief + negligible sweets

use there

https://bot.tf/stats/listings/MQ95QEXQ

B/O of 16 keys

Sale 16:

https://backpack.tf/profiles/76561198975648195#!/compare/1567296000/1567468800

https://backpack.tf/profiles/76561198079628079#!/compare/1567123200/1567382400

Untrace

sale 17:

https://backpack.tf/profiles/76561198079628079#!/compare/1567123200/1567382400

https://backpack.tf/profiles/76561198059156326#!/compare/1566864000/1567987200

Untrace

Sale 18:

https://marketplace.tf/items/tf2/30976;5;u33

$40 / $1.79 = 22.35 keys

$39 / $1.78 = 21.91 keys

Total sales @:

15, 18, 18, 20, 21, 21.91, 22.35 keys

buyers up to 15 keys,

taking 18 - 22 keys