Sale 1:

https://backpack.tf/profiles/76561198313659217#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198330581869#!/compare/1583193600/1583280000

Bulky

Sale 2:

https://backpack.tf/profiles/76561198125958792#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198057412106#!/compare/1583798400/1583884800

Sold for GE Tailor + 1 key

use there

sale 3:

https://backpack.tf/profiles/76561198057412106#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198034755171#!/compare/1583798400/1583884800

Sold for Daydream Yule

use there

sale 4:

https://backpack.tf/profiles/76561198034755171#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198077870175#!/compare/1583884800/1583971200

Sold for 19 keys

Sale 5:

https://backpack.tf/profiles/76561198077870175#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561198101915413#!/compare/1583971200/1584057600

Sold for 19 keys

sale 6:

https://backpack.tf/profiles/76561198101915413#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561197998339365#!/compare/1583971200/1584057600

Sold for Sparkling Warming + 2 keys

use there

sale 7:

https://backpack.tf/profiles/76561197998339365#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561198323565601#!/compare/1584144000/1584230400

Untrace / QS

sale 8:

https://backpack.tf/profiles/76561198089253101#!/compare/1584748800/1584835200

https://backpack.tf/profiles/76561198846423892#!/compare/1584748800/1584835200

sold for 22 keys

sale 9:

https://backpack.tf/profiles/76561198846423892#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561197964195441#!/compare/1585267200/1585353600

Sold for 23 keys

Sale 10:

https://backpack.tf/profiles/76561198044157063#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561199046258800#!/compare/1588291200/1588377600

Bulk

sale 11:

https://backpack.tf/profiles/76561199046258800#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561198161272026#!/compare/1588291200/1588377600

Sold for 22 keys

sale 12:

https://backpack.tf/profiles/76561198161272026#!/compare/1588464000/1588550400

https://backpack.tf/profiles/76561198148511293#!/compare/1588464000/1588550400

Sold for 20 keys

Sale 13:

https://backpack.tf/profiles/76561198148511293#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198395023947#!/compare/1588723200/1588809600

Sold with 5 keys for Aussie Sniper(~39)

Total is 34 keys

https://bot.tf/stats/listings/Y79Z9258

B/O of 35 keys

Sale 14:

https://backpack.tf/profiles/76561198395023947#!/compare/1589068800/1589155200

https://backpack.tf/profiles/76561198208741947#!/compare/1588982400/1589155200

Untrace

sale 15:

https://backpack.tf/profiles/76561198208741947#!/compare/1589155200/1589241600

https://backpack.tf/profiles/76561198189381361#!/compare/1589155200/1589241600

Sold with 3 keys for Vivid Safe'N'Sound

use there

https://bot.tf/stats/listings/Y79Z2769

B/O of 33 keys

sale 14:

https://backpack.tf/profiles/76561198189381361#!/compare/1589328000/1589500800

https://backpack.tf/profiles/76561198975565852#!/compare/1589328000/1589414400

Bulk

Sale 15:

https://backpack.tf/profiles/76561198975565852#!/compare/1589414400/1589500800

https://backpack.tf/profiles/76561198177872379#!/compare/1589414400/1589500800

Bulk

sale 16:

https://backpack.tf/profiles/76561198149467311#!/compare/1582070400/1586822400

https://backpack.tf/profiles/76561198209640976#!/compare/1582934400/1583020800

Bulk

sale 17:

https://backpack.tf/profiles/76561198209640976#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561197964171516#!/compare/1585353600/1585440000

Untrace

sale 18:

https://backpack.tf/profiles/76561198209640976#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561198069980430#!/compare/1585353600/1585440000

Bulk

Sale 19:

https://backpack.tf/profiles/76561198069980430#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561197964171516#!/compare/1585353600/1585440000

Sold with ~2 keys in sweets for HG Fragger(24)

total is 22 keys

sale 20:

https://backpack.tf/profiles/76561198125791160#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198040380060#!/compare/1584662400/1584921600

Sold for 35 keys

Sale 21:

https://marketplace.tf/items/tf2/31049;5;u17

$56.55 / $1.78 = 31.77 keys <--- https://backpack.tf/item/7996657352

Total sales @:

19, 19, 20, 22, 22, 22, 23, 32, 34 keys

buyers up to 13 keys,

sellers down to 28, 30 keys (30 unsold for a month)

https://i.imgur.com/CwmfsDf.jpg

taking 19 - 23 keys.