Sale 1:

https://backpack.tf/profiles/76561198086368143#!/compare/1585180800/1585440000

https://backpack.tf/profiles/76561198368944263#!/compare/1585267200/1585440000

Sold for DBD Pith + ~3 keys in sweets

use there

sale 2:

https://backpack.tf/profiles/76561198368944263#!/compare/1585440000/1585612800

https://backpack.tf/profiles/76561198394963563#!/compare/1583798400/1585440000

Sold for DBD Pith

use there

sale 3:

https://backpack.tf/profiles/76561198394963563#!/compare/1583798400/1585440000

https://backpack.tf/profiles/76561198180172962#!/compare/1584835200/1585440000

Sold for TW Geezer(11) + ~1 key in sweets

Total is 12 keys

sale 4:

https://backpack.tf/profiles/76561198180172962#!/compare/1585958400/1586563200

https://backpack.tf/profiles/76561198272038643#!/compare/1586476800/1586563200

Sold for CTFL Noble

Noble Mini:

https://backpack.tf/suggestion/5ec5d7ed28fb233e7b45d75b

Suggestion for 17.5 keys

sale 5:

https://backpack.tf/profiles/76561198272038643#!/compare/1586736000/1586822400

https://backpack.tf/profiles/76561198395511763#!/compare/1586736000/1586822400

Untrace

Sale 6:

https://backpack.tf/profiles/76561198395511763#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198838050061#!/compare/1588550400/1588723200

Sold for 13 keys

sale 7:

https://backpack.tf/profiles/76561198838050061#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198272038643#!/compare/1588723200/1588809600

Sold with 5 keys for.... something

sale 8:

https://backpack.tf/profiles/76561198272038643#!/compare/1588809600/1588896000

https://backpack.tf/profiles/76561198331337374#!/compare/1587945600/1589587200

Untrace

sale 9:

https://backpack.tf/profiles/76561198080179568#!/compare/1589241600/1589155200

https://backpack.tf/profiles/76561198038076640#!/compare/1582761600/1589241600

https://backpack.tf/profiles/76561198080179568#!/compare/1589155200/1589241600

tradeback

sale 12:

https://backpack.tf/profiles/76561198821294885#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198069493147#!/compare/1584403200/1584489600

QS

sale 13:

https://backpack.tf/profiles/76561198069493147#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198067315997#!/compare/1584403200/1584489600

Keys

sale 14:

https://backpack.tf/profiles/76561198067315997#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198235159048#!/compare/1586217600/1586304000

Sold with 10 keys for HG Waxy

use there, few sales.

sale 15:

https://backpack.tf/profiles/76561198235159048#!/compare/1586304000/1586649600

https://backpack.tf/profiles/76561198182281603#!/compare/1582416000/1586649600

Bulk

sale 16:

https://backpack.tf/profiles/76561198182281603#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198192781842#!/compare/1586995200/1587081600

Untrace

Sale 17:

https://backpack.tf/profiles/76561198097271466#!/compare/1584230400/1584316800

https://backpack.tf/profiles/76561198121191976#!/compare/1584230400/1584316800

Untrace

sale 18:

https://backpack.tf/profiles/76561198080179568#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198838050061#!/compare/1588723200/1588809600

Sold for 16 keys

sale 19:

https://backpack.tf/profiles/76561198838050061#!/compare/1589328000/1589500800

https://backpack.tf/profiles/76561198124241068#!/compare/1589414400/1589500800

Bulk

sale 20:

https://backpack.tf/profiles/76561198305494036#!/compare/1588377600/1588464000

https://backpack.tf/profiles/76561199044780296#!/compare/1588377600/1588464000

Sold for ~13 keys

sale 21:

https://backpack.tf/profiles/76561199044780296#!/compare/1588809600/1588896000

https://backpack.tf/profiles/76561198872891264#!/compare/1588723200/1588809600

Sold for 16 keys

sale 22:

https://marketplace.tf/items/tf2/30123;5;u61

$24.99 / $1.70 = 14.70 keys

$26.99 / $1.71 = 15.78 keys

Total sales @:

12, 13, 13, 15, 16, 16, 16, 18 keys

buyers up to ~14 keys,

calling 18 high,

13 low,

taking 15 -1 6 keys.