Sale 1:

https://backpack.tf/profiles/76561198258237462#!/compare/1580774400/1580860800

https://backpack.tf/profiles/76561198100261628#!/compare/1580774400/1580860800

Untrace

sale 2:

https://backpack.tf/profiles/76561198100261628#!/compare/1580774400/1580860800

https://backpack.tf/profiles/76561198288038559#!/compare/1580688000/1580860800

Sold with negligible sweets for P Fetti Sinner

use there

sale 3:

https://backpack.tf/profiles/76561198288038559#!/compare/1580860800/1581379200

https://backpack.tf/profiles/76561198414201697#!/compare/1580774400/1580860800

Untrace

sale 4:

https://backpack.tf/profiles/76561198414201697#!/compare/1580774400/1580860800

https://backpack.tf/profiles/76561198100261628#!/compare/1580774400/1580860800

see Sale 2...

Sale 5:

https://backpack.tf/profiles/76561198100261628#!/compare/1580774400/1580860800

https://backpack.tf/profiles/76561198368615541#!/compare/1580774400/1580860800

Untrace

sale 6:

https://backpack.tf/profiles/76561198368615541#!/compare/1580860800/1580947200

https://backpack.tf/profiles/76561198251982584#!/compare/1580860800/1580947200

Sold for 6 keys

sale 7:

https://backpack.tf/profiles/76561198251982584#!/compare/1581033600/1581292800

https://backpack.tf/profiles/76561198972294135#!/compare/1581206400/1581292800

Bulk

sale 8:

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

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

Sold for Aces Tailor + ~2 keys in sweets

Tailor mini:

https://backpack.tf/suggestion/5eadc4345a16e52e9b7f8b01

suggestion for 9 keys

Total is 11 keys

sale 9:

https://backpack.tf/profiles/76561198081793950#!/compare/1581379200/1581465600

https://backpack.tf/profiles/76561198101829066#!/compare/1581379200/1581465600

bulk

sale 10:

https://backpack.tf/profiles/76561197984373540#!/compare/1581638400/1581465600

https://backpack.tf/profiles/76561198020673987#!/compare/1581897600/1588377600

https://backpack.tf/profiles/76561198850274253#!/compare/1582329600/1582416000

Untrace / QS

sale 11:

https://backpack.tf/profiles/76561198373913919#!/compare/1581206400/1581465600

https://backpack.tf/profiles/76561198341171690#!/compare/1581120000/1581206400

QS

sale 12:

https://backpack.tf/profiles/76561198341171690#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198281630040#!/compare/1581465600/1581552000

Keys

sale 13:

https://backpack.tf/profiles/76561198281630040#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198852524025#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198027152204#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198136810646#!/compare/1581465600/1581552000

'https://backpack.tf/profiles/76561198116130783#!/compare/1581379200/1581638400

untrace / bulk

sale 14:

https://backpack.tf/profiles/76561198116130783#!/compare/1581724800/1581811200

https://backpack.tf/profiles/76561198342161127#!/compare/1581724800/1581811200

bulk

sale 15:

https://backpack.tf/profiles/76561198342161127#!/compare/1584230400/1584316800

https://backpack.tf/profiles/76561198175594170#!/compare/1584230400/1584403200

Sold for 9 keys

sale 16:

https://backpack.tf/profiles/76561198175594170#!/compare/1584403200/1584576000

https://backpack.tf/profiles/76561198841279602#!/compare/1584316800/1584403200

QS

sale 17:

https://backpack.tf/profiles/76561198841279602#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198204394209#!/compare/1547596800/1585699200

Sold for 9 keys

Total sales @:

6, 9, 9, 11 keys

seller at 9 keys,

buyers up to ~7.5 keys,

taking 9 flat.