Sale 1:

https://backpack.tf/profiles/76561198356813033#!/compare/1556928000/1557014400

https://backpack.tf/profiles/76561198799751226#!/compare/1555891200/1556928000

Untrace

Sale 2:

https://backpack.tf/profiles/76561198799751226#!/compare/1555891200/1556928000

https://backpack.tf/profiles/76561198154023527#!/compare/1556582400/1556928000

Sold with 6 keys for DBD Warhood(18)

Total is 12 keys

https://bot.tf/stats/listings/42R2KLQM

B/O of 11 keys, capping

Sale 3:

https://backpack.tf/profiles/76561198154023527#!/compare/1556582400/1556928000

https://backpack.tf/profiles/76561198251248130#!/compare/1556409600/1556928000

Sold for 10 keys

Sale 4:

https://backpack.tf/profiles/76561198251248130#!/compare/1556928000/1557014400

https://backpack.tf/profiles/76561198134641756#!/compare/1556928000/1557014400

Sold with 1 key for Steaming Inspecteur

Use there

Sale 5:

https://backpack.tf/profiles/76561198153580908#!/compare/1546387200/1554336000

https://backpack.tf/profiles/76561198830633436#!/compare/1554249600/1554336000

Bulky

sale 6:

https://backpack.tf/profiles/76561198830633436#!/compare/1554336000/1554422400

https://backpack.tf/profiles/76561198875470056#!/compare/1554336000/1554422400

Untrace

Sale 7:

https://backpack.tf/profiles/76561198875470056#!/compare/1554336000/1554422400

https://backpack.tf/profiles/76561198074718149#!/compare/1554336000/1554422400

Bulk / gambling?

Sale 8:

https://backpack.tf/profiles/76561198074718149#!/compare/1554422400/1554595200

https://backpack.tf/profiles/76561198129380689#!/compare/1554422400/1556150400

https://backpack.tf/profiles/76561198337734785#!/compare/1554336000/1554422400

Untrace then QS

Sale 9:

https://backpack.tf/profiles/76561198337734785#!/compare/1555718400/1555804800

https://backpack.tf/profiles/76561198356813033#!/compare/1555718400/1555804800

Sold for ~9 keys

Sale 10:

https://backpack.tf/profiles/76561198356813033#!/compare/1555891200/1555977600

https://backpack.tf/profiles/76561198080179568#!/compare/1555891200/1555977600

QS

Sale 11:

https://backpack.tf/profiles/76561198071032372#!/compare/1554336000/1555977600

https://backpack.tf/profiles/76561198237338144#!/compare/1554249600/1554336000

Bulk

Sale 12:

https://backpack.tf/profiles/76561198237338144#!/compare/1554249600/1554336000

https://backpack.tf/profiles/76561198301015840#!/compare/1553990400/1554336000

prob bulk?

Sale 13:

https://backpack.tf/profiles/76561198301015840#!/compare/1553990400/1554336000

https://backpack.tf/profiles/76561198317606171#!/compare/1554249600/1554336000

Transfer

Sale 14:

https://backpack.tf/profiles/76561198317606171#!/compare/1555286400/1555372800

https://backpack.tf/profiles/76561198389307863#!/compare/1555286400/1555372800

Untrace

Sale 15:

https://backpack.tf/profiles/76561198083134207#!/compare/1550448000/1550534400

https://backpack.tf/profiles/76561198101793900#!/compare/1533859200/1550534400

Sold for 11 keys

Sale 16:

https://backpack.tf/profiles/76561198101793900#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198360722961#!/compare/1550534400/1550620800

Sold for ~12 keys

Sale 17:

https://backpack.tf/profiles/76561198360722961#!/compare/1553126400/1553212800

https://backpack.tf/profiles/76561198370800561#!/compare/1552953600/1553212800

Bulk

Sale 18:

https://backpack.tf/profiles/76561198370800561#!/compare/1552953600/1553212800

https://backpack.tf/profiles/76561198864322868#!/compare/1553126400/1553212800

https://backpack.tf/profiles/76561198798324694#!/compare/1553126400/1553212800

https://backpack.tf/profiles/76561198048851745#!/compare/1553126400/1553212800

Bulk, untrace, QS

Sale 19:

https://backpack.tf/profiles/76561198048851745#!/compare/1555977600/1556064000

https://backpack.tf/profiles/76561198862468027#!/compare/1555804800/1556064000

Sold for ~9.5 keys

Total sales @:

9, 9.5, 10, 11, 11, 12 keys

poorly bumped seller at 10 keys,

taking 9.5 - 12 keys