Sale 1:

https://backpack.tf/profiles/76561198145082209#!/compare/1565827200/1565913600

https://backpack.tf/profiles/76561198126693824#!/compare/1565913600/1566000000

Sold for ~11 keys

Sale 2:

https://backpack.tf/profiles/76561198883049739#!/compare/1566172800/1566259200

https://backpack.tf/profiles/76561198855112897#!/compare/1566086400/1566172800

Untrace

sale 3:

https://backpack.tf/profiles/76561198855112897#!/compare/1566172800/1567900800

https://backpack.tf/profiles/76561198189599769#!/compare/1567814400/1567900800

Sold with ~1.49 keys in sweets for DBD Snaggle

use there

sale 4:

https://backpack.tf/profiles/76561198189599769#!/compare/1569283200/1569456000

https://backpack.tf/profiles/76561198834188334#!/compare/1569369600/1569542400

Bulk

sale 5:

https://backpack.tf/profiles/76561198834188334#!/compare/1569369600/1569542400

https://backpack.tf/profiles/76561198004952793#!/compare/1569542400/1569628800

....Bulk

Sale 6:

https://backpack.tf/profiles/76561198004952793#!/compare/1570233600/1570320000

https://backpack.tf/profiles/76561198132619080#!/compare/1570320000/1570406400

bulky

sale 7:

https://backpack.tf/profiles/76561198132619080#!/compare/1570838400/1571356800

https://backpack.tf/profiles/76561198117397675#!/compare/1570924800/1571616000

Sold for KaW Capo

use there

Sale 8:

https://backpack.tf/profiles/76561198411423518#!/compare/1565827200/1565913600

https://backpack.tf/profiles/76561198253519146#!/compare/1565827200/1565913600

Sold for 8 keys

sale 9:

https://backpack.tf/profiles/76561198075024818#!/compare/1566086400/1566172800

https://backpack.tf/profiles/76561198870453692#!/compare/1566000000/1566086400

Untrace

sale 10:

https://backpack.tf/profiles/76561198870453692#!/compare/1566086400/1566172800

https://backpack.tf/profiles/76561198037674114#!/compare/1566950400/1567209600

untrace

sale 11:

https://backpack.tf/profiles/76561198037674114#!/compare/1567209600/1570147200

https://backpack.tf/profiles/76561198156733777#!/compare/1567814400/1567987200

https://backpack.tf/profiles/76561198963003558#!/compare/1568678400/1567123200

Untrace

sale 12:

https://backpack.tf/profiles/76561198081219123#!/compare/1565136000/1566259200

https://backpack.tf/profiles/76561198081219123#!/compare/1565136000/1566259200

untrace

sale 13:

https://backpack.tf/profiles/76561198067025442#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198089253101#!/compare/1570665600/1570752000

QS

Sale 14:

https://backpack.tf/profiles/76561198089253101#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198080706417#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198080179568#!/compare/1570838400/1570924800

Untrace

sale 15:

https://backpack.tf/profiles/76561198089253101#!/compare/1569628800/1569715200

https://backpack.tf/profiles/76561198118157202#!/compare/1569715200/1569801600

https://backpack.tf/profiles/76561198831596900#!/compare/1569715200/1569801600

https://backpack.tf/profiles/76561198847579175#!/compare/1569715200/1569801600

untrace

sale 16:

https://backpack.tf/profiles/76561198423547134#!/compare/1566518400/1567036800

https://backpack.tf/profiles/76561198859307496#!/compare/1564012800/1568505600

untrace

sale 17:

https://backpack.tf/profiles/76561198172591431#!/compare/1564531200/1568764800

https://backpack.tf/profiles/76561198337734785#!/compare/1568678400/1568764800

QS for 7 keys

sale 18:

https://backpack.tf/profiles/76561198337734785#!/compare/1571270400/1571356800

https://backpack.tf/profiles/76561198134272837#!/compare/1571097600/1571356800

Sold for 8 keys

Sale 19:

https://backpack.tf/profiles/76561198142066912#!/compare/1566345600/1567296000

https://backpack.tf/profiles/76561198002757046#!/compare/1566259200/1566345600

QS

sale 20:

https://backpack.tf/profiles/76561198002757046#!/compare/1566345600/1566432000

https://backpack.tf/profiles/76561198132816593#!/compare/1566345600/1566432000

Sold for 9 keys

sale 21:

https://backpack.tf/profiles/76561198150096906#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198264021804#!/compare/1566691200/1566777600

sold for 8 keys

Sale 22:

https://backpack.tf/profiles/76561198264021804#!/compare/1566777600/1566864000

https://backpack.tf/profiles/76561198069493147#!/compare/1566777600/1566864000

Sold for ~8.5 keys

Sale 23:

https://backpack.tf/profiles/76561198069493147#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198093925809#!/compare/1566950400/1567036800

Sold for 11 keys

Sale 24:

https://marketplace.tf/items/tf2/480;5;u56

$20.33 / $1.84 = 11.05 keys

Total sales @:

8, 8, 8, 8.5, 9, 11, 11, 11 keys

3 sellers for 10 keys, one unsold for near a month,

buyers up to 7 keys,

with 3 sales at 11, 2 being pure,

taking the wide range of 8 - 11 keys