Sale 1:

https://backpack.tf/profiles/76561198388065024#!/compare/1517702400/1517788800

Sold for Insomnia Danger(45)

Traceable as danger was bought for isotope jag then sold immediately for Black Watch.

Sale 2:

https://backpack.tf/profiles/76561198002757046#!/compare/1518825600/1518912000

https://backpack.tf/profiles/76561198174084635#!/compare/1518825600/1518912000

Sold for 22 pure.

Sale 3:

https://backpack.tf/profiles/76561198174084635#!/compare/1519171200/1519257600

https://backpack.tf/profiles/76561198355520251#!/compare/1519171200/1519257600

Sold with Cyclone Square Dance for Aces KE

KE Mini:

https://marketplace.tf/items/538;5;u59

Sold for 60 USD, keys then at a mode of 1.98, totaling about 30 keys.

https://backpack.tf/profiles/76561198125791160#!/compare/1518825600/1518912000

https://backpack.tf/profiles/76561198301380881#!/compare/1518825600/1518912000

Sold for 30 pure.

https://backpack.tf/profiles/76561198365923475#!/compare/1522108800/1522195200

Another for 30 pure.

Taking 30 keys.

Dance Mini:

https://backpack.tf/suggestion/5ac5531bcf6c753ea9096998

Suggestion at 7.5 keys

Total is 30 - 7.5 = 22.5 keys.

Sale 4:

https://backpack.tf/profiles/76561198355520251#!/compare/1521072000/1521158400

Sold for keys, unable to trace how many as most were used to buy a Spec KS Aussie Wrench.

http://www.tf2outpost.com/trade/29564115

B/O of 27 keys, sold within 5 days.

Sale 5:

https://backpack.tf/profiles/76561198041964232#!/compare/1521158400/1521244800

Sold for 9 keys?

http://www.tf2outpost.com/trade/29589741

B/O of 26 keys, sold within days.

Sale 6:

https://backpack.tf/profiles/76561198002757046#!/compare/1521158400/1521244800

https://backpack.tf/profiles/76561198067337185#!/compare/1521158400/1521244800

Sold for 6 keys + Strange PDA(9.73) + PF Swatter

Swatter Mini:

https://backpack.tf/profiles/76561198011321852#!/compare/1520726400/1520812800

https://backpack.tf/profiles/76561198067337185#!/compare/1520640000/1520812800

Sold for 16 pure.

Taking 16.

Total is 16 + 6 + 9.73 = 30.73 keys

http://www.tf2outpost.com/trade/29549569

B/O for 25, sold within days.

Sale not included because sale isn't traceable.

Total sales are:

22, 22.5, 30.73, 45

Considering B/0 of 25 - 27, can take 30 as a sale.

45 as outlier.

Taking 22 - 30 keys.