Resuggestion, thanks to Fish for the info!

Sale 1:

https://backpack.tf/profiles/76561197984214118#!/compare/1559260800/1566345600

https://backpack.tf/profiles/76561198044759257#!/compare/1486166400/1563408000

SCM(?)

Sale 2:

https://backpack.tf/profiles/76561198315588518#!/compare/1559520000/1559606400

https://backpack.tf/profiles/76561198029074524#!/compare/1559520000/1559606400

Sold for ~12 keys

https://bot.tf/stats/item?def=178&q=5&ef=Steaming&craft=1&aus=0&ks=0&source=browser_script

Sale 3:

https://backpack.tf/profiles/76561198173088631#!/compare/1561334400/1561507200

https://backpack.tf/profiles/76561198317744461#!/compare/1562457600/1563062400

SCM

Sale 4:

https://marketplace.tf/items/tf2/178;5;u36

$25.99 / $1.83 = 14.20 keys <-- https://backpack.tf/item/724225101 No B/O

$18.1 / $1.82 = 9.95 keys <-- neither found.

Sale 5:

https://backpack.tf/profiles/76561198315588518#!/compare/1558908000/1558994400

https://bot.tf/stats/item?def=178&q=5&ef=Steaming&craft=1&aus=0&ks=0&source=browser_script

Bought for ~11 keys

Sale 6:

https://backpack.tf/profiles/76561198025795458#!/compare/1566172800/1566259200

https://backpack.tf/profiles/76561198125247757#!/compare/1566000000/1566259200

Bulk

Total sales @:

9.95, 11, 12, 14.20 keys

Month unsold at 14 keys,

no supportive sales to include 14, (thanks for clearing that up fish)

taking 10 - 12 keys