Sale 1:

https://backpack.tf/profiles/76561198066815050#!/compare/1564790400/1564876800

https://backpack.tf/profiles/76561198100007274#!/compare/1561161600/1567036800

Untrace

Sale 2:

https://backpack.tf/profiles/76561198100007274#!/compare/1571616000/1571702400

https://backpack.tf/profiles/76561197982127154#!/compare/1571529600/1571702400

Bulk

sale 3:

https://backpack.tf/profiles/76561198068789311#!/compare/1565395200/1566086400

https://backpack.tf/profiles/76561198073438708#!/compare/1565481600/1565654400

QS

sale 4:

https://backpack.tf/profiles/76561198073438708#!/compare/1565740800/1565827200

https://backpack.tf/profiles/76561198123219305#!/compare/1565740800/1565913600

Sold for 67 keys

Sale 5:

https://backpack.tf/profiles/76561198123219305#!/compare/1565740800/1565913600

https://backpack.tf/profiles/76561198403259580#!/compare/1565827200/1565913600

https://backpack.tf/profiles/76561198089253101#!/compare/1565827200/1565913600

https://backpack.tf/profiles/76561198287198615#!/compare/1565827200/1565913600

https://backpack.tf/profiles/76561198072374854#!/compare/1566345600/1566432000

Gambling

Sale 6:

https://backpack.tf/profiles/76561198028307864#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198120182984#!/compare/1570665600/1570838400

Sold with TW Mohawk for Ge Jester

use there

Sale 7:

https://backpack.tf/profiles/76561198120182984#!/compare/1571097600/1571184000

https://backpack.tf/profiles/76561198160856661#!/compare/1571097600/1571184000

Sold with 17 keys for Bubbling Mancer

use there

Sale 8:

https://marketplace.tf/items/tf2/523;5;u10

$120 / $1.84 = 65.22 keys

$131.04 / $1.81 = 72.40 keys <-- https://backpack.tf/item/3487564227

$119.99 / $1.82 = 65.93 keys <--- https://backpack.tf/item/5312681410 | https://bot.tf/stats/listings/4JG1OPO9 B/O of 60 keys, capping

$63 / $1.82 = 34.62 keys <-- https://backpack.tf/item/8009508956

Total sales @:

35, 60, 65, 67, 72 keys

buyers up to 43 keys,

taking 60 - 72 keys