Re-suggestion, thanks to Mojo for the screenshot!

Also new B/O's were found.

Sale 1:

https://backpack.tf/profiles/76561198236788328#!/compare/1524960000/1525046400

https://backpack.tf/profiles/76561198144109887#!/compare/1524960000/1525046400

Sold with 4.66 ref in sweets for Mallard Samur-Eye

http://www.tf2outpost.com/trade/29626485

B/O of 33.

Eye Mini:

https://backpack.tf/suggestion/5b19ec0ccf6c752ae02595df

Suggestion for 28.5 keys

Taking 28.33 keys

Sale 2:

https://backpack.tf/profiles/76561198144109887#!/compare/1525564800/1525737600

https://backpack.tf/profiles/76561198122604075#!/compare/1525651200/1525737600

Sold for ~16 keys pure.

Sale 3:

https://backpack.tf/profiles/76561198192118853#!/compare/1526428800/1526515200

https://backpack.tf/profiles/76561198158206236#!/compare/1526342400/1526515200

https://gyazo.com/15b10613fef54a9743712ea840912c8c

Sold for WW Quack Cool Sniper Rifle + 3 keys

http://www.tf2outpost.com/trade/29651816

B/O of 24 keys.

Sniper Mini:

https://steamcommunity.com/market/listings/440/Unusual%20Killstreak%20Quack%20Canvassed%20Sniper%20Rifle%20%28Well-Worn%29

Sold for 88.79 CAD, keys at 3.10 CAD

Total is 28.64 keys

Total is 31.64 keys.

Capped at 24.

Sale 4:

https://backpack.tf/profiles/76561198158206236#!/compare/1526688000/1526774400

https://backpack.tf/profiles/76561198147239913#!/compare/1526688000/1526774400

Sold for Miami Mullet + 72 Carlton(10.5)

Mullet Mini:

https://backpack.tf/profiles/76561198116259337#!/compare/1523664000/1523836800

Bought from SCM for 45.77 CAD (Was on SCM too long to a Buy order, sale on the 16th is too late in the time to be the sale)

Keys at 3.16 CAD

Total is 14.48 keys

https://backpack.tf/profiles/76561198135388328#!/compare/1526515200/1526601600

https://backpack.tf/profiles/76561198147239913#!/compare/1526256000/1526601600

Sold for 17 keys

Taking 17 keys.

Total is 27.5 keys.

Total sales @:

24, 27.5, 28.33

Going with 24 -28 keys.