Sale 1:

https://backpack.tf/profiles/76561198245054210#!/compare/1565913600/1566864000

https://backpack.tf/profiles/76561198323565601#!/compare/1565740800/1565913600

Untrace / QS

Sale 2:

https://backpack.tf/profiles/76561198120332855#!/compare/1570838400/1570924800

https://backpack.tf/profiles/76561198075007033#!/compare/1514246400/1570838400

Untrace

Sale 3:

https://backpack.tf/profiles/76561198075007033#!/compare/1571097600/1571356800

https://backpack.tf/profiles/76561198436821198#!/compare/1571270400/1571356800

Sold with 2 keys for Miami HWAH + ~0.49 keys in sweets

use there

Sale 4:

https://backpack.tf/profiles/76561198436821198#!/compare/1571270400/1571356800

https://backpack.tf/profiles/76561198006781839#!/compare/1570924800/1571356800

Sold for 9 keys

Sale 5:

https://backpack.tf/profiles/76561198006781839#!/compare/1571529600/1571616000

https://backpack.tf/profiles/76561198148232962#!/compare/1571443200/1571529600

Sold for Bubbling Trilby(9.5) + 2 keys

Total is 11.5 keys

Sale 6:

https://backpack.tf/profiles/76561198148232962#!/compare/1571529600/1571616000

https://backpack.tf/profiles/76561198298292652#!/compare/1571443200/1571529600

Sold for 8 keys

Sale 7:

https://backpack.tf/profiles/76561198298292652#!/compare/1571788800/1571875200

https://backpack.tf/profiles/76561198086795401#!/compare/1571788800/1571875200

Sold for TW Counterfeit + ~2 keys

use there

Sale 8:

https://backpack.tf/profiles/76561198086795401#!/compare/1571875200/1571961600

https://backpack.tf/profiles/76561198123912038#!/compare/1571788800/1571875200

Untrace, probably keys....

Sale 9:

https://backpack.tf/profiles/76561198123912038#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198310264826#!/compare/1572220800/1572307200

Sold with 3 keys for TW Challenge

use there

Sale 10:

https://backpack.tf/profiles/76561198310264826#!/compare/1572739200/1573257600

https://backpack.tf/profiles/76561198370756100#!/compare/1573171200/1573257600

Low.

Sale 11:

https://backpack.tf/profiles/76561198123426975#!/compare/1567209600/1568246400

https://backpack.tf/profiles/76561198859938296#!/compare/1567123200/1567209600

Untrace

Sale 12:

https://backpack.tf/profiles/76561198859938296#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198866566566#!/compare/1567296000/1567382400

Sold for 8 keys

Sale 13:

https://backpack.tf/profiles/76561198866566566#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561198220098345#!/compare/1567382400/1567468800

Sold for ~8.5 keys

Sale 14:

https://backpack.tf/profiles/76561198220098345#!/compare/1568073600/1568419200

https://backpack.tf/profiles/76561198266894571#!/compare/1568332800/1568419200

Sold for 10 keys

Sale 15:

https://backpack.tf/profiles/76561198266894571#!/compare/1568851200/1569628800

https://backpack.tf/profiles/76561198235968850#!/compare/1569542400/1569628800

Sold for ~8 keys

Sale 16:

https://backpack.tf/profiles/76561198235968850#!/compare/1569628800/1569715200

https://backpack.tf/profiles/76561198173891483#!/compare/1569628800/1569715200

Sold for ~9 keys

Sale 17:

https://backpack.tf/profiles/76561198173891483#!/compare/1569974400/1570147200

https://backpack.tf/profiles/76561198263801172#!/compare/1570060800/1570147200

Sold for keys

Sale 18:

https://backpack.tf/profiles/76561197962529690#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561198111056873#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561198131512154#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198320615503#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198131512154#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198050020261#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198018324434#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198320615503#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561197965419480#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198068234401#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198279539667#!/compare/1567641600/1567900800

https://backpack.tf/profiles/76561198074718149#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198317374063#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198317374063#!/compare/1567900800/1568073600

https://backpack.tf/profiles/76561198279539667#!/compare/1567987200/1568073600

https://backpack.tf/profiles/76561198044344440#!/compare/1567987200/1568073600

https://backpack.tf/profiles/76561198225715416#!/compare/1567987200/1568073600

Gambling / Untrace

Sale 19:

https://backpack.tf/profiles/76561198225715416#!/compare/1568160000/1568246400

https://backpack.tf/profiles/76561197994587943#!/compare/1568073600/1568246400

Bulk

Sale 20:

https://marketplace.tf/items/tf2/753;5;u58

$25.2 / $1.83 = 13.77 keys

total sales @:

8, 8, 8, 8.5, 9, 9, 10, 11.5, 13.77 keys

buyers up to 7 keys,

sellers down to 12 keys,

taking 8 - 12 keys