Sale 1:

https://backpack.tf/profiles/76561198453530349#!/compare/1592697600/1592784000

https://backpack.tf/profiles/76561198050518375#!/compare/1592697600/1592784000

Untrace

sale 2:

https://backpack.tf/profiles/76561198050518375#!/compare/1592784000/1592870400

https://backpack.tf/profiles/76561198853352467#!/compare/1586217600/1596153600

Untrace

sale 3:

https://backpack.tf/profiles/76561198031126990#!/compare/1595462400/1596585600

https://backpack.tf/profiles/76561198337734785#!/compare/1595376000/1595462400

QS

sAle 4:

https://backpack.tf/profiles/76561198337734785#!/compare/1596585600/1596672000

https://backpack.tf/profiles/76561198986747837#!/compare/1596499200/1596672000

https://backpack.tf/profiles/76561198841279602#!/compare/1596585600/1596672000

Untrace / QS

sale 5:

https://backpack.tf/profiles/76561198212461467#!/compare/1592956800/1593129600

https://backpack.tf/profiles/76561198850274253#!/compare/1593043200/1593129600

QS

sale 6:

https://backpack.tf/profiles/76561198850274253#!/compare/1593561600/1593648000

https://backpack.tf/profiles/76561198030542129#!/compare/1593475200/1593734400

Untrace

sale 7:

https://backpack.tf/profiles/76561198030542129#!/compare/1593734400/1593907200

https://backpack.tf/profiles/76561198059384838#!/compare/1593734400/1593820800

Sold for 11 keys

sale 8:

https://backpack.tf/profiles/76561198059384838#!/compare/1593907200/1593993600

https://backpack.tf/profiles/76561198341171690#!/compare/1593907200/1593993600

QS

sale 9:

https://backpack.tf/profiles/76561198341171690#!/compare/1594512000/1594598400

https://backpack.tf/profiles/76561198358296372#!/compare/1594857600/1594944000

https://bot.tf/stats/item?def=817&q=5&ef=Bubbling&craft=1&aus=0&ks=0&source=browser_script

Untrace, bot.tf says ~11.5 keys

Sale 10:

https://backpack.tf/profiles/76561198308103729#!/compare/1590537600/1594598400

https://backpack.tf/profiles/76561199013367635#!/compare/1590451200/1590537600

bulk

sale 11:

https://backpack.tf/profiles/76561199013367635#!/compare/1591401600/1591488000

https://backpack.tf/profiles/76561198203644480#!/compare/1591488000/1591660800

https://bot.tf/stats/item?def=817&q=5&ef=Bubbling&craft=1&aus=0&ks=0&source=browser_script

Sold for keys, can't accurately trace, likely ~11.5 keys as bot.tf says.

Sale 12:

https://backpack.tf/profiles/76561198203644480#!/compare/1592265600/1594252800

https://backpack.tf/profiles/76561198376074522#!/compare/1591747200/1594512000

https://backpack.tf/profiles/76561198164760146#!/compare/1594684800/1594512000

bot

sale 13:

https://backpack.tf/profiles/76561198348191338#!/compare/1589414400/1592006400

https://backpack.tf/profiles/76561198799557127#!/compare/1591056000/1592352000

https://backpack.tf/profiles/76561198341171690#!/compare/1592352000/1593043200

Untrace / QS

sale 14:

https://backpack.tf/profiles/76561198211068823#!/compare/1591833600/1591920000

https://backpack.tf/profiles/76561198280051723#!/compare/1592006400/1592697600

Sold for C9 Airdog(10.5) [ID Match]

sale 15:

https://backpack.tf/profiles/76561198280051723#!/compare/1592006400/1592697600

https://backpack.tf/profiles/76561198048851745#!/compare/1592006400/1592092800

QS

sale 16:

https://backpack.tf/profiles/76561198048851745#!/compare/1595721600/1596067200

https://backpack.tf/profiles/76561198253339844#!/compare/1594857600/1596067200

Sold for ~10 keys (7 used to buy Hot Sniper)

sale 17:

https://backpack.tf/profiles/76561198125791160#!/compare/1592092800/1592179200

https://backpack.tf/profiles/76561198168447190#!/compare/1587427200/1592870400

Bulk

sale 18:

https://marketplace.tf/items/tf2/817;5;u34

$29.99 / $1.99 = 15.07 keys

https://backpack.tf/item/7685929921

https://bot.tf/stats/listings/4O9R7GNP

B/O of 13 keys, capping

Total sales @:

10, 11, 11, 13 keys

buyers up to 10 keys

note 2 possible sales at ~12 keys on bot.tf,

calling 10 low,

taking 11 - 13 keys.