Sale 1:

https://backpack.tf/profiles/76561198982803000#!/compare/1587772800/1587945600

https://backpack.tf/profiles/76561198878866368#!/compare/1587686400/1587945600

https://backpack.tf/profiles/76561198012537041#!/compare/1588032000/1588118400

https://backpack.tf/profiles/76561198012537041#!/compare/1588032000/1588118400

https://backpack.tf/profiles/76561198062153114#!/compare/1588032000/1588118400

Untrace / bulk

sale 2:

https://backpack.tf/profiles/76561198062153114#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198033661509#!/compare/1588032000/1588118400

Untrace

sale 3:

https://backpack.tf/profiles/76561198033661509#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561198850274253#!/compare/1588204800/1588291200

QS

sale 4:

https://backpack.tf/profiles/76561198950621219#!/compare/1580515200/1580601600

https://backpack.tf/profiles/76561198300589665#!/compare/1579824000/1580601600

https://backpack.tf/profiles/76561198081925059#!/compare/1580428800/1580601600

https://backpack.tf/profiles/76561198132704066#!/compare/1581033600/1581120000

Untrace / bulk

Sale 5:

https://backpack.tf/profiles/76561198132704066#!/compare/1581292800/1581379200

https://backpack.tf/profiles/76561198972294135#!/compare/1581292800/1581379200

Sold with ~2 keys in sweets for Aces Toque

use there

sale 6:

https://backpack.tf/profiles/76561198972294135#!/compare/1581292800/1581379200

https://backpack.tf/profiles/76561198081793950#!/compare/1581292800/1581379200

https://backpack.tf/profiles/76561198124069244#!/compare/1580256000/1581379200

https://backpack.tf/profiles/76561198164569021#!/compare/1513209600/1581465600

Untrace / bulk

sale 7:

https://backpack.tf/profiles/76561198878866368#!/compare/1583539200/1584144000

https://backpack.tf/profiles/76561197984373540#!/compare/1584057600/1585353600

https://backpack.tf/profiles/76561198878948902#!/compare/1585353600/1585267200

https://backpack.tf/profiles/76561198850274253#!/compare/1585526400/1585612800

Bulk / qS

Sale 8:

https://backpack.tf/profiles/76561198850274253#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198036144976#!/compare/1586476800/1586563200

Bulk

sale 9:

https://backpack.tf/profiles/76561198036144976#!/compare/1586563200/1586649600

https://backpack.tf/profiles/76561198141477086#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198270949034#!/compare/1587340800/1587427200

https://backpack.tf/profiles/76561198036955284#!/compare/1587513600/1587686400

https://backpack.tf/profiles/76561198036955284#!/compare/1587513600/1587686400

https://backpack.tf/profiles/76561198258351096#!/compare/1586995200/1587513600

https://backpack.tf/profiles/76561198200589523#!/compare/1587168000/1587686400

Untrace / bulk

sale 10:

https://backpack.tf/profiles/76561198135140709#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198037674114#!/compare/1585094400/1585526400

https://backpack.tf/profiles/76561198020673987#!/compare/1585440000/1585526400

https://backpack.tf/profiles/76561198337734785#!/compare/1585872000/1585958400

Untrace / QS

sale 11:

https://backpack.tf/profiles/76561198337734785#!/compare/1586736000/1586822400

https://backpack.tf/profiles/76561198314271909#!/compare/1583107200/1586908800

https://backpack.tf/profiles/76561199017926833#!/compare/1586822400/1586908800

https://backpack.tf/profiles/76561198868969121#!/compare/1586736000/1586908800

https://backpack.tf/profiles/76561198986747837#!/compare/1586908800/1586995200

https://backpack.tf/profiles/76561198043003969#!/compare/1585612800/1586995200

https://backpack.tf/profiles/76561198129380689#!/compare/1586908800/1586995200

https://backpack.tf/profiles/76561198108020681#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198179253523#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198999667088#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198144089680#!/compare/1581897600/1587081600

https://backpack.tf/profiles/76561198878948902#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198850274253#!/compare/1587168000/1587081600

Untrace / bulk

sale 12:

https://backpack.tf/profiles/76561198363768590#!/compare/1584576000/1585872000

https://backpack.tf/profiles/76561198358778649#!/compare/1584489600/1584576000

QS

sale 13:

https://backpack.tf/profiles/76561198966838493#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198012537041#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198084174776#!/compare/1564185600/1585180800

https://backpack.tf/profiles/76561197984373540#!/compare/1585180800/1585267200

Bulk / untrace

sale 14:

https://backpack.tf/profiles/76561197984373540#!/compare/1585526400/1585612800

https://backpack.tf/profiles/76561198072364553#!/compare/1584576000/1585699200

Untrace

Sale 15:

https://marketplace.tf/items/tf2/30327;5;u59

$14.99 / $1.72 = 8.72 keys

$14.99 / $1.68 = 8.92 keys <--- https://backpack.tf/item/7611796398

$14.99 / $1.69 = 8.87 keys

$14.22 / $1.77 = 8.03 keys

$18.1 / $1.82 = 9.95 keys

Total sales @:

8, 8.5, 9, 9, 10 keys

Taking 8 - 10 keys