Sale 1:

https://backpack.tf/profiles/76561198127508905#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198086548073#!/compare/1566345600/1569110400

untrace, keys dont match

sale 2:

https://backpack.tf/profiles/76561198806813126#!/compare/1567900800/1568073600

https://backpack.tf/profiles/76561198337734785#!/compare/1567987200/1568073600

QS

Sale 3:

https://backpack.tf/profiles/76561198337734785#!/compare/1568419200/1568505600

https://backpack.tf/profiles/76561198243719108#!/compare/1568419200/1568505600

Sold for 7 keys

sale 4:

https://backpack.tf/profiles/76561198243719108#!/compare/1568419200/1568505600

https://backpack.tf/profiles/76561198129380689#!/compare/1568505600/1569110400

https://backpack.tf/profiles/76561198942915886#!/compare/1568505600/1569542400

https://backpack.tf/profiles/76561198077827135#!/compare/1567987200/1568505600

Untrace

sale 5:

https://backpack.tf/profiles/76561198050121860#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198344382836#!/compare/1567814400/1567900800

Sold for ~6 keys in sweets

sale 6:

https://backpack.tf/profiles/76561198344382836#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198828608394#!/compare/1567296000/1567900800

untrace

Sale 7:

https://backpack.tf/profiles/76561198828608394#!/compare/1567987200/1568073600

https://backpack.tf/profiles/76561198239963212#!/compare/1567814400/1568073600

sold for 10 keys

Sale 8:

https://backpack.tf/profiles/76561198095280542#!/compare/1566086400/1566259200

https://backpack.tf/profiles/76561198318361156#!/compare/1566086400/1566172800

QS

sale 9:

https://backpack.tf/profiles/76561198318361156#!/compare/1567728000/1567814400

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

Probably sold for ~8 keys, can't prove tho.

Sale 10:

https://backpack.tf/profiles/76561197965419480#!/compare/1567814400/1568678400

https://backpack.tf/profiles/76561198320615503#!/compare/1567728000/1567814400

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

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

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

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

https://backpack.tf/profiles/76561198312465686#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198258926359#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198074132210#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198225715416#!/compare/1567900800/1567987200

Bulk / untrace / gambling

Sale 11:

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

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

Bulk

sale 12:

https://backpack.tf/profiles/76561198047704729#!/compare/1569974400/1571529600

https://backpack.tf/profiles/76561198186922501#!/compare/1571443200/1571529600

bulk

sale 13:

https://backpack.tf/profiles/76561198186922501#!/compare/1571616000/1571702400

https://backpack.tf/profiles/76561198847672167#!/compare/1571443200/1571702400

Bulk

Sale 14:

https://backpack.tf/profiles/76561198847672167#!/compare/1571961600/1572048000

https://backpack.tf/profiles/76561198219245815#!/compare/1571961600/1572048000

Sold for 8 keys

sale 15:

https://backpack.tf/profiles/76561198219245815#!/compare/1572048000/1572134400

https://backpack.tf/profiles/76561198191624677#!/compare/1571788800/1572134400

https://backpack.tf/profiles/76561198136159866#!/compare/1572048000/1572134400

https://backpack.tf/profiles/76561198110677513#!/compare/1572048000/1572134400

https://backpack.tf/profiles/76561198088968038#!/compare/1571443200/1572134400

https://backpack.tf/profiles/76561198929605755#!/compare/1572220800/1572652800

https://backpack.tf/profiles/76561198409974768#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198409974768#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198075024818#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198075024818#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198280275064#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198049512514#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198049512514#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198085784034#!/compare/1572220800/1572480000

https://backpack.tf/profiles/76561198196685086#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198950621219#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198950621219#!/compare/1572307200/1572393600

https://backpack.tf/profiles/76561198119153879#!/compare/1572307200/1572393600

https://backpack.tf/profiles/76561198051050346#!/compare/1572307200/1572393600

https://backpack.tf/profiles/76561198134546405#!/compare/1572307200/1572393600

https://backpack.tf/profiles/76561198197739413#!/compare/1572393600/1572480000

https://backpack.tf/profiles/76561198028040120#!/compare/1572393600/1572480000

https://backpack.tf/profiles/76561198053720151#!/compare/1572393600/1572480000

https://backpack.tf/profiles/76561198939755793#!/compare/1572393600/1572480000

gambling / bulk / untrace

Sale 16:

https://backpack.tf/profiles/76561198139257833#!/compare/1567468800/1567555200

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

Untrace

Sale 17:

https://backpack.tf/profiles/76561198249412440#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198363395191#!/compare/1567814400/1567900800

QS

Sale 18:

https://backpack.tf/profiles/76561198363395191#!/compare/1568160000/1568246400

https://backpack.tf/profiles/76561197999845696#!/compare/1568160000/1568246400

https://backpack.tf/profiles/76561198337734785#!/compare/1568160000/1568246400

Sold for 13 keys, then QS in the same day.

Sale 19:

https://backpack.tf/profiles/76561198080179568#!/compare/1568419200/1568505600

https://backpack.tf/profiles/76561198243719108#!/compare/1568419200/1568505600

Sold for 7 keys

Sale 20:

https://backpack.tf/profiles/76561198243719108#!/compare/1568419200/1568505600

https://backpack.tf/profiles/76561198240449208#!/compare/1568505600/1568592000

Untrace

Sale 21:

https://backpack.tf/profiles/76561198074718149#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198372681544#!/compare/1567900800/1567987200

untrace

Sale 22:

https://backpack.tf/item/7955983070

everything before pasta is tradebacks / untrace

Sale 23:

https://backpack.tf/profiles/76561198341171690#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561198426067035#!/compare/1567209600/1567296000

Can trace a taunt

Sale 24:

https://backpack.tf/profiles/76561198426067035#!/compare/1567728000/1568073600

https://backpack.tf/profiles/76561198363395191#!/compare/1567728000/1567900800

QS

sale 25:

https://backpack.tf/profiles/76561198363395191#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198398127286#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198258926359#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198258926359#!/compare/1567987200/1568073600

https://backpack.tf/profiles/76561198061786462#!/compare/1567900800/1567987200

https://backpack.tf/profiles/76561198051798340#!/compare/1567900800/1567987200

Untrace

Sale 26:

https://backpack.tf/profiles/76561198051798340#!/compare/1571184000/1571529600

https://backpack.tf/profiles/76561198049005449#!/compare/1571443200/1571529600

untrace

Sale 27:

https://backpack.tf/profiles/76561198049005449#!/compare/1571702400/1571788800

https://backpack.tf/profiles/76561198820650894#!/compare/1571788800/1571875200

untrace

sale 28:

https://backpack.tf/profiles/76561198820650894#!/compare/1571788800/1571875200

https://backpack.tf/profiles/76561198075024818#!/compare/1571788800/1571875200

Gambling

sale 29:

https://backpack.tf/profiles/76561198075024818#!/compare/1571875200/1571961600

https://backpack.tf/profiles/76561198070534300#!/compare/1571616000/1571961600

Utnrace

Sale 30:

https://marketplace.tf/items/tf2/309;5;u56

$15.1 / $1.81 = 8.34 keys

https://backpack.tf/item/7956848431

total sales @:

6, 7, 7, 8, 8.34, 10 keys

buyers up to ~6.5 keys,

sellers for ~10 keys,

call 6 low,

10 high.

taking 7 - 8.5 keys