Sale 1:

https://backpack.tf/profiles/76561197999507606#!/compare/1585267200/1586304000

https://backpack.tf/profiles/76561198834678807#!/compare/1585872000/1586217600

untrace / bulk

sale 2:

https://backpack.tf/profiles/76561198245775974#!/compare/1584230400/1585872000

https://backpack.tf/profiles/76561198147561462#!/compare/1585353600/1585699200

Sold for Smoking Herald

https://bot.tf/stats/listings/4299REQV

B/O of 8 keys, caps by buyers

Sale 3:

https://backpack.tf/profiles/76561198841279602#!/compare/1586649600/1586736000

https://backpack.tf/profiles/76561198403954305#!/compare/1586649600/1587081600

Keys

Sale 4:

https://backpack.tf/profiles/76561198403954305#!/compare/1586649600/1587081600

https://backpack.tf/profiles/76561198188639765#!/compare/1586995200/1587081600

Sold for spell

sale 5:

https://backpack.tf/profiles/76561198020673987#!/compare/1586822400/1586995200

https://backpack.tf/profiles/76561198850274253#!/compare/1586908800/1586995200

Bulk

sale 6:

https://backpack.tf/profiles/76561198850274253#!/compare/1587081600/1587168000

https://backpack.tf/profiles/76561198151843849#!/compare/1586995200/1587168000

Untrace

Sale 7:

https://backpack.tf/profiles/76561198990481631#!/compare/1587340800/1587427200

https://backpack.tf/profiles/76561198322560312#!/compare/1587254400/1587340800

Untrace

sale 8:

https://backpack.tf/profiles/76561198012150310#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198968412423#!/compare/1584230400/1584489600

SCM

sale 9:

https://backpack.tf/profiles/76561198951426318#!/compare/1586476800/1587081600

https://backpack.tf/profiles/76561199021973289#!/compare/1586995200/1587340800

Bulk

sale 10:

https://backpack.tf/profiles/76561198392410201#!/compare/1585353600/1587081600

https://backpack.tf/profiles/76561198292076781#!/compare/1585094400/1586736000

SCM

sale 11:

https://backpack.tf/profiles/76561198292076781#!/compare/1586995200/1587427200

https://backpack.tf/profiles/76561198363395191#!/compare/1587340800/1587427200

Untrace

sale 12:

https://backpack.tf/profiles/76561198084660530#!/compare/1582675200/1582761600

https://backpack.tf/profiles/76561198131081286#!/compare/1582675200/1582761600

Bulk(?)

Sale 13:

https://backpack.tf/profiles/76561198131081286#!/compare/1582934400/1583020800

https://backpack.tf/profiles/76561198795851270#!/compare/1582934400/1583020800

Sold with ref for some amount of keys

sale 14:

https://backpack.tf/profiles/76561198795851270#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198850274253#!/compare/1582934400/1583020800

QS

sale 15:

https://backpack.tf/profiles/76561198850274253#!/compare/1587340800/1587427200

https://backpack.tf/profiles/76561198171447086#!/compare/1587340800/1587427200

https://backpack.tf/profiles/76561198084660530#!/compare/1587340800/1587427200

untrace / bulk

Sale 16:

https://backpack.tf/profiles/76561198407226837#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198027853812#!/compare/1584403200/1584489600

Sold with ~0.5 keys in sweets for CPS Burglerre

Sale 17:

https://backpack.tf/profiles/76561198027853812#!/compare/1584748800/1584835200

https://backpack.tf/profiles/76561198847460633#!/compare/1584748800/1584835200

Sold for MS Favor + SGG Deep Fried + ~1.5 keys in sweets

Favor Mini:

https://backpack.tf/suggestion/5ea017aafbe04058f4023718

Suggestion for 2.75 keys

Fried Mini:

https://backpack.tf/suggestion/5ea075e458a3c3470a7f0ac6

Suggestion for 2.95 keys

Total is 7.2 keys

https://bot.tf/stats/listings/4295P2D7

B/O of ~7 keys, capping

Sale 18:

https://backpack.tf/profiles/76561198847460633#!/compare/1584835200/1584921600

https://backpack.tf/profiles/76561198250282224#!/compare/1583625600/1584921600

Untrace

Sale 19:

https://backpack.tf/profiles/76561198250282224#!/compare/1583625600/1584921600

https://backpack.tf/profiles/76561198850667361#!/compare/1584835200/1585094400

untrace

Sale 20:

https://backpack.tf/profiles/76561198850667361#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198985910282#!/compare/1585094400/1585180800

QS

sale 21:

https://backpack.tf/profiles/76561198985910282#!/compare/1586908800/1586995200

https://backpack.tf/profiles/76561198198498837#!/compare/1586908800/1586995200

Can trace 6 keys

Sale 22:

https://marketplace.tf/items/tf2/30662;5;u94

$10 / $1.76 = 5.68 keys

$13.5 / $1.78 = 7.58 keys <--- https://backpack.tf/item/7338492687

$11.95 / $1.75 = 6.83 keys <--- https://backpack.tf/item/8422035724

$14.45 / $1.77 = 8.16 keys

$12.95 / $1.76 = 7.36 keys

$13.61 / $1.75 = 7.78 keys

$20.6 / $1.79 = 11.51 keys

Total sales @:

5.5, 7, 7, 7.5, 7.5, 8, 8, 8, 11.5 keys

buyers up to 6 keys,

9 key seller unsold for 3 months,

10 key unsold for years,

7 key seller is aging,

calling 5.5 low,

11.5 high,

taking 7 - 8 keys.