Sale 1:

https://backpack.tf/profiles/76561198071096285#!/compare/1542758400/1542844800

https://backpack.tf/profiles/76561198093899544#!/compare/1542758400/1542844800

Sold with negligible sweets for C9 Drill Hat

Hat Mini:

https://backpack.tf/suggestion/5c3c3ee544325a732b5e793c

Suggestion for 26 keys

Sale 2:

https://backpack.tf/profiles/76561198093899544#!/compare/1542844800/1542931200

https://backpack.tf/profiles/76561198004952793#!/compare/1542758400/1542844800

Sold for CTFL Pipe

Pipe Mini:

https://backpack.tf/suggestion/5c3c390644325a6d707a12d8

Suggestion for 20 keys

Sale 3:

https://backpack.tf/profiles/76561198004952793#!/compare/1542844800/1543104000

https://backpack.tf/profiles/76561198259488531#!/compare/1542931200/1543968000

Sold for Strange CH Puffy + SGG Drongo + ~5 keys in sweets

Seems high.

Sale 4:

https://backpack.tf/profiles/76561198259488531#!/compare/1543968000/1544054400

https://backpack.tf/profiles/76561198155926056#!/compare/1540857600/1543968000

Bulky

Sale 5:

https://backpack.tf/profiles/76561198056876856#!/compare/1539388800/1539907200

https://backpack.tf/profiles/76561198046078762#!/compare/1539820800/1539907200

Sold for HG Nickel

Nickel Mini:

https://backpack.tf/suggestion/5c3c1a94cf6c7564a55fb907

Suggestion for 21 keys

Sale 6:

https://backpack.tf/profiles/76561198046078762#!/compare/1539820800/1539907200

https://backpack.tf/profiles/76561198018719204#!/compare/1539820800/1539907200

Untrace

Sale 7:

https://backpack.tf/profiles/76561198018719204#!/compare/1539820800/1539907200

https://backpack.tf/profiles/76561198180706295#!/compare/1539907200/1541289600

Can trace ~10 keys in items?

Sale 8:

https://backpack.tf/profiles/76561198197481041#!/compare/1541203200/1541548800

QS

Sale 9:

https://backpack.tf/profiles/76561198056876856#!/compare/1543104000/1543276800

https://backpack.tf/profiles/76561198054782257#!/compare/1541116800/1543276800

Sold for 20 keys

Sale 10:

https://backpack.tf/profiles/76561198054782257#!/compare/1543276800/1543363200

Sold for P Fetti Shellmet + 2 keys

Use there.

Sale 11:

https://backpack.tf/profiles/76561198062621644#!/compare/1543795200/1543968000

https://backpack.tf/profiles/76561198110330197#!/compare/1543881600/1543968000

Being used there.

Sale 12:

https://backpack.tf/profiles/76561198110330197#!/compare/1543968000/1545436800

https://backpack.tf/profiles/76561198318945307#!/compare/1544054400/1544572800

SCM

Sale 13 - 15:

https://marketplace.tf/items/30357;5;u60

Sold for 56.62, 28.55, 56.99 USD

Keys at 1.78, 1.72, 1.76 USD

Totals are 31.81, 16.60, 32.38 keys

Total sales @:

16.60, 20, 20, 21, 26, 31.81, 32.38 keys

Seller at 30 keys,

Buyers up to 17 keys,

Taking 20 - 26 keys.