Sale 1:

https://backpack.tf/profiles/76561198080250900#!/compare/1569888000/1569974400

https://backpack.tf/profiles/76561198371026030#!/compare/1571011200/1571097600

https://backpack.tf/profiles/76561198966838493#!/compare/1571011200/1571097600

https://backpack.tf/profiles/76561198210700703#!/compare/1571011200/1571097600

https://backpack.tf/profiles/76561198401812933#!/compare/1570924800/1571356800

untrace

sale 2:

https://backpack.tf/profiles/76561198266985238#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198983438713#!/compare/1566864000/1566950400

Sold for KaW Mountain(18)

sale 3:

https://backpack.tf/profiles/76561198983438713#!/compare/1566950400/1567036800

https://backpack.tf/profiles/76561198332869276#!/compare/1566950400/1567036800

Sold with ~2 keys in sweets for Stormy Cowl(15)

Total is 13 keys

sale 4:

https://backpack.tf/profiles/76561198332869276#!/compare/1567209600/1567382400

https://backpack.tf/profiles/76561198201518699#!/compare/1567382400/1567468800

Sold for P Fetti Esteem + ~1.5 keys in sweets

by sellers on Esteem, would end up low.

sale 5:

https://backpack.tf/profiles/76561198201518699#!/compare/1572912000/1573257600

https://backpack.tf/profiles/76561198120332855#!/compare/1572998400/1573084800

Sold for Vortex Convict

use there

Sale 6:

https://backpack.tf/profiles/76561198120332855#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561197990076257#!/compare/1573257600/1573344000

Untrace

Sale 7:

https://backpack.tf/profiles/76561197990076257#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561198065400580#!/compare/1573084800/1573344000

Bulky

sale 8:

https://marketplace.tf/items/tf2/30316;5;u11

$20 / $1.82 = 10.99 keys

Total sales @:

11, 13, 18 keys

sellers at 15, 17 keys,

taking 11 - 13 keys.