Taking last 2 months (August 20 on)

Sale 1:

https://backpack.tf/profiles/76561198340634356#!/compare/1568592000/1568678400

'https://backpack.tf/profiles/76561198058594578#!/compare/1568592000/1568678400

Sold for 18 keys

sale 2:

https://backpack.tf/profiles/76561198068175913#!/compare/1570147200/1570147200/nearest

https://backpack.tf/profiles/76561198335791307#!/compare/1570060800/1570147200

QS

sale 3:

https://backpack.tf/profiles/76561198300074730#!/compare/1570233600/1570752000

https://backpack.tf/profiles/76561198098330939#!/compare/1570752000/1570838400

Bulk

Sale 4:

https://backpack.tf/profiles/76561198157680604#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198160856661#!/compare/1566691200/1566777600

Bulk

sale 5:

https://backpack.tf/profiles/76561198160856661#!/compare/1567728000/1567814400

https://backpack.tf/profiles/76561198050015007#!/compare/1567728000/1567814400

Sold for Showstopper Panzer

use there

Sale 6:

https://backpack.tf/profiles/76561198050015007#!/compare/1567814400/1568073600

https://backpack.tf/profiles/76561198334598690#!/compare/1567987200/1568073600

QS

Sale 7:

https://backpack.tf/profiles/76561198207987376#!/compare/1567900800/1568073600

https://backpack.tf/profiles/76561198080183599#!/compare/1567900800/1568073600

Bulk

sale 8:

https://backpack.tf/profiles/76561198080183599#!/compare/1568246400/1568332800

https://backpack.tf/profiles/76561198050745352#!/compare/1568246400/1568332800

Bulk

Sale 9:

https://backpack.tf/profiles/76561198266317934#!/compare/1556755200/1567209600

https://backpack.tf/profiles/76561198335791307#!/compare/1567123200/1567209600

Sold for ~16 keys (QS)

Sale 10:

https://backpack.tf/profiles/76561198335791307#!/compare/1570147200/1570233600

https://backpack.tf/profiles/76561198090676723#!/compare/1569110400/1570665600

Keys, at least 14

Sale 11:

https://backpack.tf/profiles/76561198867208675#!/compare/1568073600/1568160000

https://backpack.tf/profiles/76561198074518443#!/compare/1568073600/1568160000

Sold for 15 keys

Sale 12:

https://backpack.tf/profiles/76561198074518443#!/compare/1569024000/1569283200

https://backpack.tf/profiles/76561198064161505#!/compare/1564790400/1569283200

Sold for 17 keys

Sale 13:

https://backpack.tf/profiles/76561198068621631#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198279167936#!/compare/1566432000/1567209600

https://backpack.tf/profiles/76561198068621631#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198372942066#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198097171432#!/compare/1566518400/1566604800

https://backpack.tf/profiles/76561198097171432#!/compare/1566604800/1566950400

Gambling / bulk

Sale 14:

https://backpack.tf/profiles/76561198129822245#!/compare/1566604800/1566864000

https://backpack.tf/profiles/76561198155441223#!/compare/1566518400/1566691200

Untrace

sale 15:

https://backpack.tf/profiles/76561198155441223#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198325261992#!/compare/1567036800/1567123200

Sold for Rockets Panzer + 1 key

use there

Sale 16:

https://marketplace.tf/items/tf2/1162;5;u3001

$32.32 / $1.82 = 17.76 keys <-- https://backpack.tf/item/7351174225 | https://bot.tf/stats/listings/M175L597 B/0 of 18 keys

$22.38 / $1.83 = 12.23 keys

$29 / $1.82 = 15.93 keys <--- https://backpack.tf/item/5675639591 one of the two, can't tell.

$29 / $1.82 = 15.93 keys <--- ^

Bot.tf:

https://bot.tf/stats/item?def=1162&q=5&ef=Showstopper&craft=1&aus=0&ks=0&source=browser_script

2 sale @ 18 keys,

1 sale @ 30 keys

2 sales @ 12 keys,

1 sale @ 13 keys,

2 sales @ 16 keys,

Total sales @:

12, 12, 12.23, 13, 15, 15.93, 15.93, 16, 16, 17, 17.76, 18, 18, 30 keys

buyers up to ~13 keys,

seller at 17 is very new,

https://bot.tf/stats/listings/4PP53K95

Seller at 18 keys unsold for over a month,

calling 13 and under low,

30 high,

taking 15 - 18 keys