Sale 1:

https://backpack.tf/profiles/76561198386268687#!/compare/1569628800/1571097600

https://backpack.tf/profiles/76561198081042493#!/compare/1569974400/1570233600

Untrace

sale 2:

https://backpack.tf/profiles/76561198125655370#!/compare/1563926400/1564012800

https://backpack.tf/profiles/76561198068910184#!/compare/1563753600/1564012800

Bulk

Sale 3:

https://backpack.tf/profiles/76561198068910184#!/compare/1564358400/1564531200

https://backpack.tf/profiles/76561197994697258#!/compare/1564444800/1564531200

Sold with Grail Spirits + 11 keys for AF Mullet

use there, few sales

https://bot.tf/stats/listings/Y7DDEKRL

B/O of 48 keys

Sale 4:

https://backpack.tf/profiles/76561198062523009#!/compare/1565222400/1565308800

https://backpack.tf/profiles/76561198112397295#!/compare/1564876800/1565308800

Sold for 39 keys

Sale 5:

https://backpack.tf/profiles/76561198118855467#!/compare/1563926400/1569283200

https://backpack.tf/profiles/76561198062612728#!/compare/1565827200/1569024000

untrace

Sale 6:

https://backpack.tf/profiles/76561198154211785#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198183396245#!/compare/1567555200/1567641600

Sold with 4 keys for Stormy Bonk

use there

Sale 7:

https://backpack.tf/profiles/76561198183396245#!/compare/1568246400/1568332800

https://backpack.tf/profiles/76561198418740133#!/compare/1568246400/1568332800

Bulk

Sale 8:

https://backpack.tf/profiles/76561198264117106#!/compare/1563235200/1563321600

https://backpack.tf/profiles/76561198149682389#!/compare/1563235200/1563321600

Sold for 35 keys

Sale 9:

https://backpack.tf/profiles/76561198149682389#!/compare/1570406400/1570492800

https://backpack.tf/profiles/76561198086282088#!/compare/1570406400/1570492800

Sold for ~37 keys

Sale 10:

https://backpack.tf/profiles/76561198077605729#!/compare/1564876800/1565136000

https://backpack.tf/profiles/76561198125791160#!/compare/1565049600/1565136000

Bulky(?)

Sale 11:

https://backpack.tf/profiles/76561198125791160#!/compare/1565740800/1565827200

https://backpack.tf/profiles/76561198249460168#!/compare/1565308800/1565827200

Sold for Slumber Norsemann(20) + 28 keys

Total is 48 keys

https://bot.tf/stats/listings/4250W3QG

B/O of 45 keys, capping

Sale 12:

https://backpack.tf/profiles/76561198006544512#!/compare/1563321600/1563408000

https://backpack.tf/profiles/76561198170933259#!/compare/1563321600/1563408000

Keys

Sale 13:

https://backpack.tf/profiles/76561198170933259#!/compare/1563494400/1563580800

https://backpack.tf/profiles/76561198059183251#!/compare/1563148800/1563926400

Untrace

Sale 14:

https://backpack.tf/profiles/76561198119927852#!/compare/1567555200/1567728000

https://backpack.tf/profiles/76561198063237132#!/compare/1567641600/1567728000

Sold for 43 keys

Sale 15:

https://backpack.tf/profiles/76561198043992035#!/compare/1568073600/1568160000

https://backpack.tf/profiles/76561198051475324#!/compare/1566950400/1568505600

Sold for 46 keys

Sale 16 - 20:

https://marketplace.tf/items/tf2/30978;5;u14

$70 / $1.81 = 38.67 keys

$61.01 / $1.83 = 33.34 keys

$79.99 / $1.83 = 43.71 keys

$84.99 / $1.81 = 46.96 keys <--- https://backpack.tf/item/6843125241| https://bot.tf/stats/listings/Y7D1RZ2W B/O of 45 keys, capping

$85.34 / $1.82 = 46.89 keys

Total sales @:

33.34, 35, 37, 38.67, 39, 43, 43.71, 45, 45, 46, 46.89 keys

buyers up to 30 keys,

unsold for a month at 50 keys,

https://bot.tf/stats/listings/YDL9N01X

Unsold for 40 for more than 2 weeks,

seller for 39 keys unsold for ~a week.

https://bot.tf/stats/listings/MNLD2KEQ

Taking the wide range of 33 - 47 keys, conserving around unsold.