Sale 1:

https://backpack.tf/profiles/76561198236041414#!/compare/1565568000/1565654400

https://backpack.tf/profiles/76561198052478490#!/compare/1565481600/1565568000

Bulk

Sale 2:

https://backpack.tf/profiles/76561198182030757#!/compare/1562889600/1563580800

https://backpack.tf/profiles/76561197999873164#!/compare/1563148800/1563235200

Sold for ~5.5 keys

sale 3:

https://backpack.tf/profiles/76561197999873164#!/compare/1564704000/1564790400

https://backpack.tf/profiles/76561198071664925#!/compare/1564704000/1564790400

Sold for 8 keys

Sale 4:

https://backpack.tf/profiles/76561198071664925#!/compare/1564704000/1564790400

https://backpack.tf/profiles/76561198323565601#!/compare/1564704000/1564790400

Untrrace

Sale 5:

https://backpack.tf/profiles/76561198151192422#!/compare/1564012800/1564099200

https://backpack.tf/profiles/76561198122477003#!/compare/1558915200/1564358400

Untrace

Sale 6:

https://backpack.tf/profiles/76561198122477003#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198131319016#!/compare/1566000000/1566086400

Low.

sale 7:

https://backpack.tf/profiles/76561198131319016#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198091342225#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198150467275#!/compare/1566000000/1566086400

Untrace / bulk

sale 8:

https://backpack.tf/profiles/76561198446548676#!/compare/1564531200/1564963200

https://backpack.tf/profiles/76561198044843701#!/compare/1564876800/1564963200

Sold for C9 Escorter + ~2 keys in sweets

Escorter Mini:

https://backpack.tf/suggestion/5d808cc06780720210659fa4

Suggestion for 9.5 keys

Total is 11.5 keys

Sale 9:

https://backpack.tf/profiles/76561198044843701#!/compare/1567900800/1568419200

https://backpack.tf/profiles/76561198080179568#!/compare/1568505600/1568592000

Can't trace in last compare..

Sale 10:

https://backpack.tf/profiles/76561198121739464#!/compare/1566604800/1566950400

https://backpack.tf/profiles/76561198341454324#!/compare/1566864000/1566950400

Sold with 2 keys for C9 Topi

Topi Mini:

https://backpack.tf/suggestion/5d808bc06780727ffc63f464

Suggestion for 9.5 keys

Total is 7.5 keys

Sale 11:

https://backpack.tf/profiles/76561198341454324#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198332344457#!/compare/1567123200/1567209600

Sold for CPS Mong(7.5)

Sale 12:

https://backpack.tf/profiles/76561198332344457#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198190420734#!/compare/1567209600/1567296000

Can trace keys....

Sale 13:

https://backpack.tf/profiles/76561198190420734#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198213234076#!/compare/1567296000/1567382400

Sold with 1 key for Smoking Gonzilla

Sale 14:

https://backpack.tf/profiles/76561198213234076#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198094372833#!/compare/1567555200/1567641600

Sold for 6 keys

Sale 15:

https://backpack.tf/profiles/76561198094372833#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198320615503#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561197992703391#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198044344440#!/compare/1568073600/1568160000

Untrace

Sale 16:

https://marketplace.tf/items/tf2/30024;5;u58

$13.7 / $1.82 = 7.53 keys

Total sales @:

5.5, 6, 7.5, 7.5, 7.53, 8, 11.5 keys

sellers at 8 keys,

buyers up to ~5 keys,

gonna call 5.5 low, 11.5 high,

taking 6 - 8 keys