Sale 1:

https://backpack.tf/profiles/76561198275012706#!/compare/1551398400/1551484800

https://backpack.tf/profiles/76561197964171516#!/compare/1551398400/1551484800

Sold with ~3 keys in sweets for Searing Larrikin

Use there

Sale 2:

https://backpack.tf/profiles/76561198140218473#!/compare/1506556800/1549843200

https://backpack.tf/profiles/76561198169141155#!/compare/1555286400/1555372800

Untrace

Sale 3:

https://backpack.tf/profiles/76561198044377714#!/compare/1554336000/1554768000

https://backpack.tf/profiles/76561198337734785#!/compare/1554595200/1554681600

Sold for Bubbling Airdog(9.5)

Sale 4:

https://backpack.tf/profiles/76561198337734785#!/compare/1555027200/1555113600

https://backpack.tf/profiles/76561198363200213#!/compare/1555027200/1555200000

Keys...

Sale 5:

https://backpack.tf/profiles/76561198082613857#!/compare/1550361600/1552608000

https://backpack.tf/profiles/76561198337734785#!/compare/1552521600/1552608000

QS

Sale 6:

https://backpack.tf/profiles/76561198337734785#!/compare/1552608000/1552694400

https://backpack.tf/profiles/76561198042938501#!/compare/1552608000/1552694400

Keys

Sale 7:

https://backpack.tf/profiles/76561198042938501#!/compare/1552694400/1552780800

https://backpack.tf/profiles/76561198068910184#!/compare/1479427200/1552780800

Sold for 10 keys

Sale 8:

https://backpack.tf/profiles/76561198068910184#!/compare/1552867200/1552953600

https://backpack.tf/profiles/76561198071588645#!/compare/1552867200/1552953600

Sold for Miami Esteem

Esteem Mini:

https://backpack.tf/suggestion/5cbea01cd3817251d7475ef9

Suggestion for 9.5 keys

Sale 9:

https://backpack.tf/profiles/76561198071588645#!/compare/1552867200/1552953600

https://backpack.tf/profiles/76561198337734785#!/compare/1552867200/1552953600

QS

Sale 10:

https://backpack.tf/profiles/76561198131479738#!/compare/1555372800/1555632000

https://backpack.tf/profiles/76561198208861321#!/compare/1555545600/1555632000

Low

Sale 11:

https://backpack.tf/profiles/76561198208861321#!/compare/1555804800/1555891200

https://backpack.tf/profiles/76561198363395191#!/compare/1555804800/1555891200

Keys, QS

Sale 12:

https://marketplace.tf/items/314;5;u57

$22.78 / $1.77 = 12.87 keys <-- B/O of 10 keys https://bot.tf/stats/listings/Y9J5XWD4

Total sales @:

9.5, 9.5, 10, 10 keys

Taking 9.5 - 10 keys