Sale 1:

https://backpack.tf/profiles/76561198332839477#!/compare/1551657600/1551744000

https://backpack.tf/profiles/76561198088349748#!/compare/1551484800/1551744000

Sold for 16 keys

Sale 2:

https://backpack.tf/profiles/76561198410429966#!/compare/1550275200/1550361600

https://backpack.tf/profiles/76561198056793885#!/compare/1550275200/1550361600

Bulk

Sale 3:

https://backpack.tf/profiles/76561198056793885#!/compare/1550448000/1550534400

https://backpack.tf/profiles/76561198072725528#!/compare/1550361600/1550534400

Bulk

Sale 4:

https://backpack.tf/profiles/76561198072725528#!/compare/1551830400/1551916800

https://backpack.tf/profiles/76561198361129578#!/compare/1551830400/1551916800

Bulk

Sale 5:

https://backpack.tf/profiles/76561198361129578#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198089253101#!/compare/1552003200/1552089600

Sold for 13 keys

Sale 6:

https://backpack.tf/profiles/76561198089253101#!/compare/1552176000/1552262400

https://backpack.tf/profiles/76561198373719952#!/compare/1552176000/1552262400

Untrace

Sale 7:

https://backpack.tf/profiles/76561198930460537#!/compare/1553558400/1553644800

https://backpack.tf/profiles/76561198036394691#!/compare/1553558400/1553644800

Sold for Smoking Blast + 1 key

Blast Mini:

https://backpack.tf/suggestion/5cab8cf46780726e283f4383

Suggestion for 13.5 keys

Total is 14.5 keys

Sale 8:

https://backpack.tf/profiles/76561198394965271#!/compare/1553990400/1554336000

https://backpack.tf/profiles/76561198294426922#!/compare/1554249600/1554336000

Sold with ~5 keys for Smoking Phantom

Phantom Mini:

https://backpack.tf/suggestion/5cab7b96d3817221bf3bfc1b

Suggestion for 22.5 keys

Total is 17.5 keys

Sale 9:

https://backpack.tf/profiles/76561198294426922#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198343885717#!/compare/1554508800/1554595200

Untrace

Total sales @:

13, 14.5, 16, 17.5 keys

Buyers up to 12 keys,

Seller at 19 keys,

Taking 13 - 18 keys