Sale 1:

https://backpack.tf/profiles/76561198008113369#!/compare/1572912000/1572998400

https://backpack.tf/profiles/76561198089253101#!/compare/1572912000/1572998400

QS

sale 2:

https://backpack.tf/profiles/76561198866374631#!/compare/1566604800/1567036800

https://backpack.tf/profiles/76561198116608226#!/compare/1566604800/1566691200

Untrace

Sale 3:

https://backpack.tf/profiles/76561198152370674#!/compare/1567468800/1569542400

https://backpack.tf/profiles/76561197992953927#!/compare/1566432000/1567900800

SCM

Sale 4:

https://backpack.tf/profiles/76561198074360307#!/compare/1569715200/1572307200

https://backpack.tf/profiles/76561198080179568#!/compare/1569628800/1569715200

QS

sale 5:

https://backpack.tf/profiles/76561198312685638#!/compare/1566345600/1566604800

https://backpack.tf/profiles/76561198225715416#!/compare/1566518400/1566604800

Sold for ST Fubar for Blizzardy Honcho(19.5)

Fubar Mini:

https://backpack.tf/suggestion/5dcb9236d3817251867978de

Suggestion for 5.5 keys

Total is 14 keys

Sale 6:

https://backpack.tf/profiles/76561198225715416#!/compare/1568160000/1568246400

https://backpack.tf/profiles/76561197994587943#!/compare/1568073600/1568246400

Bulk

Sale 7:

https://backpack.tf/profiles/76561198214502713#!/compare/1569628800/1569801600

https://backpack.tf/profiles/76561198097116544#!/compare/1571702400/1571875200

SCM

Sale 8 - 11:

https://marketplace.tf/items/tf2/30393;5;u56

$21 / $1.82 = 11.54 keys

$19 / $1.83 = 10.38 keys <--- https://backpack.tf/item/7957189039

$16.1 / $1.82 = 8.85 keys

$14 / $1.77 = 7.91 keys

https://backpack.tf/item/7955652923 <-- one of the MPTF sales, can't tell which one...

total sales @:

7.91, 8.85, 10.38, 11.54, 14 keys

buyers up to ~7.5 keys,

month old unsold for 10 keys,

seller for 9 keys,

calling 14 high,

7.91 low,

taking 9 - 12 keys