Sale 1:

https://backpack.tf/profiles/76561198278800827#!/compare/1583280000/1585353600

https://backpack.tf/profiles/76561198337734785#!/compare/1585872000/1586131200

QS

sale 2:

https://backpack.tf/profiles/76561198337734785#!/compare/1586908800/1586995200

https://backpack.tf/profiles/76561198369428037#!/compare/1586736000/1586908800

Keys

sale 3:

https://backpack.tf/profiles/76561198251805358#!/compare/1581379200/1581465600

https://backpack.tf/profiles/76561198070181630#!/compare/1582502400/1582848000

Untrace

sale 4:

https://backpack.tf/profiles/76561198070181630#!/compare/1584403200/1582934400

https://backpack.tf/profiles/76561198850274253#!/compare/1583884800/1584403200

QS

sale 5:

https://backpack.tf/profiles/76561198850274253#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198105799736#!/compare/1585612800/1585699200

Sod for 17 keys, likely more.

sale 6:

https://backpack.tf/profiles/76561198105799736#!/compare/1586044800/1586131200

https://backpack.tf/profiles/76561198065749444#!/compare/1586044800/1586131200

Sold with TW Bicorne for Insomnia Pillar

use there

sale 7:

https://backpack.tf/profiles/76561198065749444#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198316907092#!/compare/1586217600/1586304000

sold for CH Bandito + ~3 keys in sweets

use there

sale 8:

https://backpack.tf/profiles/76561198115699456#!/compare/1587945600/1588118400

https://backpack.tf/profiles/76561198100132186#!/compare/1584057600/1588204800

Sold for 30 keys

sale 9:

https://backpack.tf/profiles/76561198080361060#!/compare/1583712000/1585094400

https://backpack.tf/profiles/76561198223429284#!/compare/1583971200/1584144000

Untrace

sale 10:

https://backpack.tf/profiles/76561198223429284#!/compare/1587859200/1588118400

https://backpack.tf/profiles/76561198149682389#!/compare/1588032000/1588118400

Sold for 28 keys

Sale 11:

https://marketplace.tf/items/tf2/30708;5;u104

$57 / $1.75 = 32.57 keys

$57 / $1.77 = 32.20 keys

$34.46 / $1.77 = 19.47 keys

$49.99 / $1.77 = 28.24 keys

$49.99 / $1.69 = 29.58 keys <--- https://backpack.tf/item/8427683909 | https://bot.tf/stats/listings/Y5ZZE773 B/O of 28 keys, capping

Total sales @:

19, 28, 28, 28, 30, 32, 33 keys

buyers up to 26 keys,

sellers at ~32 keys,

taking 28 - 32 keys.