Taking sales within last 2 months.

Sale 1:

https://backpack.tf/profiles/76561198067011440#!/compare/1562371200/1563926400

https://backpack.tf/profiles/76561198848072512#!/compare/1564617600/1566000000

SCM?

Sale 2:

https://backpack.tf/profiles/76561198056793444#!/compare/1562976000/1563062400

https://backpack.tf/profiles/76561198305676157#!/compare/1562976000/1563062400

Sold for ~3.62 keys

Sale 3:

https://backpack.tf/profiles/76561198072901890#!/compare/1564272000/1564531200

https://backpack.tf/profiles/76561198048851745#!/compare/1564444800/1564531200

Sold for 3.14 keys

Sale 4:

https://backpack.tf/profiles/76561198058908965#!/compare/1561852800/1561939200

https://backpack.tf/profiles/76561198080179568#!/compare/1561852800/1561939200

QS(?)

Sale 5:

https://backpack.tf/profiles/76561198340634356#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198137965765#!/compare/1566691200/1566777600

Sold for 4 keys

Sale 6:

https://backpack.tf/profiles/76561198137965765#!/compare/1566777600/1566864000

https://backpack.tf/profiles/76561198824443316#!/compare/1566777600/1566864000

Bulk / transfer

Sale 7:

https://backpack.tf/profiles/76561198965695956#!/compare/1566086400/1567036800

https://backpack.tf/profiles/76561198340634356#!/compare/1566950400/1567036800

QS

Sale 8:

https://backpack.tf/profiles/76561198340634356#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198399534280#!/compare/1567036800/1567209600

Sold for 4 keys

Sale 9:

https://backpack.tf/profiles/76561198211647572#!/compare/1564012800/1564099200

https://backpack.tf/profiles/76561198088024854#!/compare/1559952000/1566950400

Untrace

Sale 10:

https://backpack.tf/profiles/76561198170993431#!/compare/1562371200/1562457600

https://backpack.tf/profiles/76561198310752705#!/compare/1562371200/1562457600

https://backpack.tf/profiles/76561198089449160#!/compare/1562457600/1562630400

https://backpack.tf/profiles/76561198151561701#!/compare/1562716800/1562803200

https://backpack.tf/profiles/76561198166496890#!/compare/1561766400/1564185600

https://backpack.tf/profiles/76561198074080874#!/compare/1564272000/1564358400

https://backpack.tf/profiles/76561198104327676#!/compare/1564444800/1564790400

Not unusual

Sale 11:

https://backpack.tf/profiles/76561198073885854#!/compare/1566259200/1567036800

https://backpack.tf/profiles/76561198326415562#!/compare/1566172800/1566259200

Untrace

Sale 12:

https://backpack.tf/profiles/76561198326415562#!/compare/1566432000/1566691200

https://backpack.tf/profiles/76561198334598690#!/compare/1566604800/1566691200

QS

Sale 13:

https://backpack.tf/profiles/76561198334598690#!/compare/1566950400/1567036800

https://backpack.tf/profiles/76561198407275390#!/compare/1567036800/1567123200

Sold for 4.46 keys

Sale 14:

https://backpack.tf/profiles/76561198884518360#!/compare/1563926400/1564099200

https://backpack.tf/profiles/76561198884518360#!/compare/1563926400/1564099200

https://backpack.tf/profiles/76561197970615863#!/compare/1563840000/1563926400

https://backpack.tf/profiles/76561198370643382#!/compare/1563148800/1564012800

https://backpack.tf/profiles/76561197970615863#!/compare/1563926400/1564012800

https://backpack.tf/profiles/76561197970615863#!/compare/1564358400/1564444800

https://backpack.tf/profiles/76561198035499016#!/compare/1564099200/1564617600

Not unusual then SCM

Sale 15:

https://backpack.tf/profiles/76561198035499016#!/compare/1564704000/1564790400

https://backpack.tf/profiles/76561198929111933#!/compare/1560902400/1566345600

SCM?

Sale 16:

https://backpack.tf/profiles/76561198872891264#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198382378862#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198252999692#!/compare/1566691200/1566777600

Sold for Aces Soviet, then C9 HoC, in bulk for both.

Sale 17:

https://backpack.tf/profiles/76561198161720692#!/compare/1566000000/1566000000

https://backpack.tf/profiles/76561198273922766#!/compare/1566691200/1567296000

Untrace

Sale 18- 23"

https://marketplace.tf/items/tf2/1113;5;u3004

$9 / $1.81 = 4.97 keys <-- https://backpack.tf/item/6959893788

$9 / $1.80 = 5.00 keys <-- https://backpack.tf/item/3016269047

$7.8 / $1.83 = 4.26 keys

$7.8 / $1.83 = 4.26 keys

$7.8 / $1.84 = 4.24 keys <-- https://backpack.tf/item/3097029449

$6 / $1.82 = 3.30 keys

Bot.tf:

https://i.imgur.com/db92Wqj.png

https://bot.tf/stats/item?def=1113&q=5&ef=%2772&craft=1&aus=0&ks=0&source=browser_script

3 sales @ 3.62 keys,

1 sale @ 3.32 keys,

1 sale @ 3.36 keys,

4 sales @ 4 keys,

1 sale @ 4.46 keys,

3 sales @ 3.87 keys,

1 sale @ 3.82 keys

Total sales @:

3.15

3.3 (x2)

3.35

3.6 (x4)

3.8

3.85 (x3)

4 (x4)

4.25 (x3)

4.45

4.95

5

Buyers up to ~3.35 keys,

Month unsold at ~3.90 keys,

gonna take 3.6 to 4.25 keys, preserving range as close as possible to the unsold.