Sale 1:

https://backpack.tf/profiles/76561198313154263#!/compare/1583107200/1583193600

https://backpack.tf/profiles/76561198068732040#!/compare/1583107200/1583193600

Bulk

sale 2:

https://backpack.tf/profiles/76561198064565623#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198177719569#!/compare/1584835200/1584921600

https://backpack.tf/profiles/76561198970987097#!/compare/1584921600/1585094400

https://backpack.tf/profiles/76561198305494036#!/compare/1585008000/1585094400

Untrace / QS

sale 3:

https://backpack.tf/profiles/76561198305494036#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198354459626#!/compare/1585008000/1585094400

Sold for 12 keys

sale 4:

https://backpack.tf/profiles/76561198354459626#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198029074524#!/compare/1585008000/1585094400

Untrace

sale 5:

https://backpack.tf/profiles/76561198056974324#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198859721638#!/compare/1585008000/1585094400

Bulk

sale 6:

https://backpack.tf/profiles/76561198859721638#!/compare/1585180800/1585267200

https://backpack.tf/profiles/76561197985416294#!/compare/1585180800/1585267200

Bulk

sale 7:

https://backpack.tf/profiles/76561197985416294#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561198207675609#!/compare/1585267200/1585353600

Sold for Searing Swagger + ~1 key in sweets

use there

sale 8:

https://backpack.tf/profiles/76561198207675609#!/compare/1585785600/1585872000

https://backpack.tf/profiles/76561198128012200#!/compare/1585785600/1585872000

Sold for ~17 keys in sweets

sale 9:

https://backpack.tf/profiles/76561198128012200#!/compare/1586736000/1586822400

https://backpack.tf/profiles/76561198112096451#!/compare/1586736000/1586822400

Sold for 12 keys

sale 10:

https://backpack.tf/profiles/76561197992703391#!/compare/1581984000/1582243200

https://backpack.tf/profiles/76561198820335875#!/compare/1581897600/1581984000

https://backpack.tf/profiles/76561198878866368#!/compare/1581033600/1582156800

Untrace / bulk

sale 11:

https://backpack.tf/profiles/76561198880361166#!/compare/1587340800/1587513600

https://backpack.tf/profiles/76561198109872491#!/compare/1587340800/1587686400

untrace

sale 12:

https://backpack.tf/profiles/76561198109872491#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198179253523#!/compare/1588809600/1588896000

untrace

sale 13:

https://backpack.tf/profiles/76561198179253523#!/compare/1588809600/1588896000

https://backpack.tf/profiles/76561198002757046#!/compare/1588809600/1588896000

QS

Sale 14:

https://backpack.tf/profiles/76561198002757046#!/compare/1588982400/1589068800

https://backpack.tf/profiles/76561198129676224#!/compare/1589241600/1589328000

Untrace

sale 15:

https://backpack.tf/profiles/76561198085957674#!/compare/1581811200/1583020800

https://backpack.tf/profiles/76561198083615351#!/compare/1582934400/1583020800

scammer sale

sale 16:

https://backpack.tf/profiles/76561198083615351#!/compare/1584921600/1585267200

https://backpack.tf/profiles/76561198177872379#!/compare/1584921600/1585008000

scammer sale

sale 17:

https://backpack.tf/profiles/76561198177872379#!/compare/1585008000/1585094400

https://backpack.tf/profiles/76561198057368586#!/compare/1585008000/1585094400

Sold for 14 keys

sale 18:

https://backpack.tf/profiles/76561198057368586#!/compare/1585353600/1585958400

https://backpack.tf/profiles/76561198342161127#!/compare/1585267200/1585353600

Bulk

sale 19:

https://backpack.tf/profiles/76561198427162335#!/compare/1583280000/1583539200

https://backpack.tf/profiles/76561198094462791#!/compare/1575244800/1587859200

Untrace

sale 20:

https://marketplace.tf/items/tf2/344;5;u8

$39.99 / $1.70 = 23.52 keys <--- https://backpack.tf/item/964880973

$27 / $1.77 = 15.25 keys

$33.5 / $1.82 = 18.41 keys <--- https://backpack.tf/item/947895436

Total sales @:

12, 12, 14, 15, 17, 18, 24 keys

buyers up to 12 keys,

seller at 21 keys,

calling 12 low,

24 high,

taking 14 - 18 keys