Taking last 2 months (August 21 on)

Sale 1:

https://backpack.tf/profiles/76561198335791307#!/compare/1566518400/1566604800

https://backpack.tf/profiles/76561198064672402#!/compare/1566604800/1566691200

Sold for 17 Keys

Sale 2:

https://backpack.tf/profiles/76561198064672402#!/compare/1567296000/1568851200

https://backpack.tf/profiles/76561198335791307#!/compare/1567296000/1567382400

QS

sale 3:

https://backpack.tf/profiles/76561198190280305#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198077934494#!/compare/1566345600/1566864000

SCM

Sale 4:

https://backpack.tf/profiles/76561198011134507#!/compare/1566000000/1566691200

https://backpack.tf/profiles/76561198314211872#!/compare/1566604800/1566691200

Sold with 10 keys for Ominous Skullcracker

bulky

Sale 5:

https://backpack.tf/profiles/76561198866073662#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198070744678#!/compare/1566864000/1566950400

Sold for 11 keys

Sale 6:

https://backpack.tf/profiles/76561198070744678#!/compare/1567123200/1567296000

https://backpack.tf/profiles/76561198295102090#!/compare/1567123200/1567296000

https://backpack.tf/profiles/76561198012537041#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561197999873164#!/compare/1567382400/1567555200

Untrace then QS

Sale 7:

https://backpack.tf/profiles/76561198043826027#!/compare/1569542400/1569715200

https://backpack.tf/profiles/76561198089777023#!/compare/1564876800/1570579200

Bulk

sale 8:

https://backpack.tf/profiles/76561198003926663#!/compare/1566345600/1566432000

https://backpack.tf/profiles/76561198279167936#!/compare/1566345600/1566432000

https://backpack.tf/profiles/76561198066813088#!/compare/1565481600/1566432000

https://backpack.tf/profiles/76561198046393528#!/compare/1566345600/1566432000

https://backpack.tf/profiles/76561198127625914#!/compare/1566345600/1566432000

Untrace

Sale 9:

https://backpack.tf/profiles/76561198063803737#!/compare/1566518400/1566604800

https://backpack.tf/profiles/76561198096728532#!/compare/1566086400/1566604800

https://backpack.tf/profiles/76561198799983169#!/compare/1566518400/1566604800

https://backpack.tf/profiles/76561198273865118#!/compare/1566518400/1566604800

Untrace

sale 10:

https://backpack.tf/profiles/76561198302451811#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198149918355#!/compare/1566950400/1567123200

Sold for ~10 keys

sale 11:

https://backpack.tf/profiles/76561198149918355#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561198010901864#!/compare/1567209600/1567296000

Untrace

sale 12:

https://backpack.tf/profiles/76561198010901864#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198094372833#!/compare/1567296000/1567382400

Sold for 10 keys

sale 13:

https://backpack.tf/profiles/76561198094372833#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198224648164#!/compare/1567296000/1567382400

Bulk

sale 14:

https://backpack.tf/profiles/76561198224648164#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198002757046#!/compare/1567555200/1567641600

QS

sale 15:

https://backpack.tf/profiles/76561198002757046#!/compare/1570579200/1570665600

https://backpack.tf/profiles/76561198383086963#!/compare/1570492800/1570665600

Sold for Miami Tippler + ~4 keys in sweets

Tippler Mini:

https://backpack.tf/suggestion/5dad4a3d6780720dcf1569f7

Suggestion for 8.5 keys

Total is 12.5 keys

Sale 16:

https://backpack.tf/profiles/76561198383086963#!/compare/1571184000/1571270400

https://backpack.tf/profiles/76561198196410274#!/compare/1571184000/1571270400

Sold with ~4 keys in sweets for DP Bomber

use there

Sale 17:

https://backpack.tf/profiles/76561198196410274#!/compare/1571270400/1571356800

https://backpack.tf/profiles/76561198987350303#!/compare/1571270400/1571356800

Sold with negligible sweets for G Fetti Elfin

use there

sale 18:

https://backpack.tf/profiles/76561198987350303#!/compare/1571356800/1571443200

https://backpack.tf/profiles/76561198067095618#!/compare/1571356800/1571443200

Sold for Smoking Bonnet + ~2 keys in sweets

Bonnet Mini:

https://backpack.tf/suggestion/5dad5930d3817207d5511afd

Suggestion for 9 keys

Total is 11 keys

sale 19:

https://backpack.tf/profiles/76561198067095618#!/compare/1571356800/1571443200

https://backpack.tf/profiles/76561198168820816#!/compare/1571184000/1571443200

Sold for ~9.5 keys

Sale 20:

https://backpack.tf/profiles/76561198168820816#!/compare/1571443200/1571529600

https://backpack.tf/profiles/76561198153430433#!/compare/1571529600/1571616000

Sold for 10 keys

Sale 21:

https://backpack.tf/profiles/76561198153430433#!/compare/1571529600/1571616000

https://backpack.tf/profiles/76561198807017962#!/compare/1571529600/1571616000

Sold for G Fetti Kabuto

use there

sale 22:

https://marketplace.tf/items/tf2/612;5;u62

$21.99 / $1.83 = 12.02 keys

Total sales @:

9.5, 10, 10, 10, 11, 11, 12, 12.5, 17 keys

buyers up to ~8.5 keys,

sellers down to 13 keys,

taking 10 - 13 keys