Sale 1:

https://backpack.tf/profiles/76561198146130508#!/compare/1565481600/1571788800

https://backpack.tf/profiles/76561198014728963#!/compare/1571443200/1571788800

uncertain

Sale 2:

https://backpack.tf/profiles/76561198063803737#!/compare/1565395200/1565481600

https://backpack.tf/profiles/76561198079504588#!/compare/1565395200/1565481600

Sold for 17 Keys

Sale 3:

https://backpack.tf/profiles/76561198079504588#!/compare/1565395200/1565481600

https://backpack.tf/profiles/76561198221009364#!/compare/1562716800/1565481600

Sold for ~14 keys

Sale 4:

https://backpack.tf/profiles/76561198221009364#!/compare/1566172800/1566259200

https://backpack.tf/profiles/76561198118128851#!/compare/1566172800/1566259200

Sold for ~14 keys

Sale 5:

https://backpack.tf/profiles/76561198118128851#!/compare/1566259200/1566345600

https://backpack.tf/profiles/76561198384394586#!/compare/1566259200/1566345600

sold for Planets Cotton + 1 key

use there

Sale 6:

https://backpack.tf/profiles/76561198824782663#!/compare/1529712000/1569542400

https://backpack.tf/profiles/76561198263314625#!/compare/1552262400/1570665600

Untrace

sale 7:

https://backpack.tf/profiles/76561198113414083#!/compare/1569888000/1570492800

https://backpack.tf/profiles/76561198314349856#!/compare/1570406400/1570492800

Bulk

sale 8:

https://backpack.tf/profiles/76561198314349856#!/compare/1570492800/1570579200

https://backpack.tf/profiles/76561198083897108#!/compare/1570492800/1570579200

Bulk

Sale 9:

https://backpack.tf/profiles/76561198083897108#!/compare/1570492800/1570579200

https://backpack.tf/profiles/76561198334047096#!/compare/1570492800/1570579200

Can trace some keys...

sale 10:

https://backpack.tf/profiles/76561198334047096#!/compare/1570492800/1570579200

https://backpack.tf/profiles/76561198120672630#!/compare/1570406400/1570579200

Sold for C9 Scrap(16.5)

Sale 11, 12:

https://marketplace.tf/items/tf2/30307;5;u32

$29.95 / $1.82 = 16.46 keys <--- https://backpack.tf/item/7023039436 | https://bot.tf/stats/listings/MVRR7Q32 b/O of 18 keys

$30.95 / $1.82 = 17.01 keys <--- https://backpack.tf/item/5135586020

Total sales @:

14, 14, 16.46, 16.5, 17, 17.01 keys

Buyers up to 10 keys,

sellers at 17 keys,

taking 14 - 17 keys