Sale 1:

https://backpack.tf/profiles/76561198452226254#!/compare/1571443200/1571961600

https://backpack.tf/profiles/76561198986177898#!/compare/1573516800/1573603200

QS

Sale 2:

https://backpack.tf/profiles/76561198986177898#!/compare/1571443200/1571356800

https://backpack.tf/profiles/76561198325790722#!/compare/1573516800/1573689600

keys

Sale 3:

https://backpack.tf/profiles/76561198874388908#!/compare/1574035200/1574121600

https://backpack.tf/profiles/76561198120747050#!/compare/1573948800/1574035200

sold for 17 keys

sale 4:

https://backpack.tf/profiles/76561198120747050#!/compare/1574121600/1574208000

https://backpack.tf/profiles/76561198071723815#!/compare/1574121600/1574208000

Sold for Static Company(26)

https://bot.tf/stats/listings/MQ9JOQ52

B/O of 20 keys, capping

Sale 5:

https://backpack.tf/profiles/76561198104327676#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561198208827912#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561198127121102#!/compare/1573084800/1573344000

https://backpack.tf/profiles/76561198002757046#!/compare/1573257600/1573344000

Untrace/ QS

sale 6:

https://backpack.tf/profiles/76561198002757046#!/compare/1573948800/1574035200

https://backpack.tf/profiles/76561198402124564#!/compare/1573948800/1574035200

Sold for 20 keys

Sale 7:

https://backpack.tf/profiles/76561198342161127#!/compare/1571270400/1571356800

https://backpack.tf/profiles/76561198402124564#!/compare/1570838400/1571356800

sold for keys

sale 8:

https://backpack.tf/profiles/76561198402124564#!/compare/1572048000/1572220800

https://backpack.tf/profiles/76561198197292179#!/compare/1572652800/1572739200

untrace

sale 9:

https://backpack.tf/profiles/76561198367074243#!/compare/1567900800/1573516800

https://backpack.tf/profiles/76561198967768334#!/compare/1570147200/1573516800

Untrace

sale 10:

https://backpack.tf/profiles/76561198848072512#!/compare/1571702400/1572912000

https://backpack.tf/profiles/76561198837143610#!/compare/1571875200/1572134400

low...

Sale 11:

https://backpack.tf/profiles/76561198095252926#!/compare/1568332800/1569888000

https://backpack.tf/profiles/76561198045493149#!/compare/1569283200/1569456000

untrace

sale 12:

https://backpack.tf/profiles/76561198169756327#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198149175706#!/compare/1570665600/1570838400

Keys

sale 13:

https://backpack.tf/profiles/76561198149175706#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198099141522#!/compare/1572134400/1572220800

Sold for 19 keys

sale 14:

https://backpack.tf/profiles/76561198099141522#!/compare/1572134400/1572220800

https://backpack.tf/profiles/76561198105046721#!/compare/1572134400/1572220800

Sold for 18 keys

sale 15:

https://backpack.tf/profiles/76561198105046721#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198069265267#!/compare/1572220800/1572307200

Bulky

Sale 16:

https://backpack.tf/profiles/76561198069265267#!/compare/1572307200/1572393600

https://backpack.tf/profiles/76561198031711498#!/compare/1572307200/1572393600

sold for ~18 keys

Sale 17:

https://backpack.tf/profiles/76561198031711498#!/compare/1572393600/1572480000

https://backpack.tf/profiles/76561198027768897#!/compare/1572393600/1572480000

Sold for Max Head(~19)

Sale 18:

https://backpack.tf/profiles/76561198027768897#!/compare/1572739200/1572652800

https://backpack.tf/profiles/76561198078541762#!/compare/1572652800/1572825600

SCM

sale 19 - 21:

https://marketplace.tf/items/tf2/30977;5;u8

$60 / $1.82 = 32.97 keys

$43.21 / $1.82 = 23.74 keys <--- https://backpack.tf/item/6754697976

$55 / $1.80 = 30.56 keys

Total sales @:

17, 18, 18, 19, 19, 20, 20, 24, 31, 33 keys

seller at 22 keys,

buyers up to ~17 keys

calling 31 high,

17 low,

taking 18 - 24 keys.