Sale 1:

https://backpack.tf/profiles/76561198809414908#!/compare/1584921600/1585008000

https://backpack.tf/profiles/76561197994634231#!/compare/1584921600/1585008000

Sold for Planets Sober + 1 key

use there

Sale 2:

https://backpack.tf/profiles/76561197994634231#!/compare/1585440000/1585526400

https://backpack.tf/profiles/76561198097442448#!/compare/1585526400/1585612800

Untrace

sale 3:

https://backpack.tf/profiles/76561198097442448#!/compare/1585612800/1585785600

https://backpack.tf/profiles/76561198800178871#!/compare/1585699200/1585785600

Sold for ~6 keys in sweets

sale 4:

https://backpack.tf/profiles/76561198800178871#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198978621382#!/compare/1585785600/1586217600

Untrace

sale 5:

https://backpack.tf/profiles/76561198978621382#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198255903931#!/compare/1586217600/1586304000

bulk

sale 6:

https://backpack.tf/profiles/76561198255903931#!/compare/1586304000/1586390400

https://backpack.tf/profiles/76561198244962432#!/compare/1586304000/1586390400

untrace

sale 7:

https://backpack.tf/profiles/76561198244962432#!/compare/1586304000/1586390400

https://backpack.tf/profiles/76561198355333388#!/compare/1584316800/1586390400

Sold for DBD Chief

seems like something else was involved....

Sale 8:

https://backpack.tf/profiles/76561198355333388#!/compare/1586390400/1586476800

https://backpack.tf/profiles/76561198879945899#!/compare/1586390400/1586476800

QS

sale 9:

https://backpack.tf/profiles/76561198038666068#!/compare/1582934400/1583020800

https://backpack.tf/profiles/76561198125791160#!/compare/1582934400/1583020800

Bulk

sale 10:

https://backpack.tf/profiles/76561198100877472#!/compare/1580860800/1585094400

https://backpack.tf/profiles/76561198090614429#!/compare/1585008000/1585094400

Untrace

sale 11:

https://backpack.tf/profiles/76561198044967511#!/compare/1584144000/1584662400

https://backpack.tf/profiles/76561198335791307#!/compare/1584057600/1584144000

QS

sale 12:

https://backpack.tf/profiles/76561198052772297#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198114402400#!/compare/1583193600/1583366400

Bulk

sale 13:

https://backpack.tf/profiles/76561198798964113#!/compare/1585008000/1585353600

https://backpack.tf/profiles/76561198110617485#!/compare/1584835200/1585353600

Bulk

sale 14:

https://marketplace.tf/items/tf2/30672;5;u3020

$15.3 / $1.77 = 8.64 keys <--- https://backpack.tf/item/4263153822

$15.3 / $1.75 = 8.74 keys

$15.3 / $1.75 = 8.74 keys <--- https://backpack.tf/item/4448527834

$15.3 / $1.68 = 9.11 keys

$20 / $1.69 = 11.83 keys <--- https://backpack.tf/item/4257732916

$11.05 / $1.75 = 6.31 keys

$17.7 / $1.79 = 9.89 keys

Total sales @:

6, 6.5, 8.5, 8.5, 8.5, 9, 10, 12 keys

buyers up to ~5.64 keys,

sellers at 10 keys,

calling 12 high,

6.5 low,

taking 8.5 - 10 keys