Sale 1:

https://backpack.tf/profiles/76561198189845146#!/compare/1532044800/1532476800

https://backpack.tf/profiles/76561198418740133#!/compare/1532390400/1532476800

Sold with ~3 keys in sweets for Pro KS Rocket Launcheer(11 keys)

Total is 8 keys

Sale 2:

https://backpack.tf/profiles/76561198418740133#!/compare/1534896000/1534982400

https://backpack.tf/profiles/76561198227764324#!/compare/1534896000/1535155200

Sold for 11 keys

Sale 3:

https://backpack.tf/profiles/76561198011321852#!/compare/1532995200/1533081600

https://backpack.tf/profiles/76561198004789112#!/compare/1533081600/1533168000

Sold for 12 keys

Sale 4:

https://backpack.tf/profiles/76561198304376371#!/compare/1533859200/1534636800

https://backpack.tf/profiles/76561198295776289#!/compare/1533859200/1533945600

Sold for P Fetti Sky High + ~ 3 keys in sweets

Sky High Mini:

https://backpack.tf/suggestion/5b8b3f4d44325a20176b9918

Suggestion for 8.5 keys

Total is 11.5 keys

Sale 5:

https://backpack.tf/profiles/76561198295776289#!/compare/1533945600/1534032000

https://backpack.tf/profiles/76561198110930731#!/compare/1533686400/1534032000

Sold for Ancient Codex Translator(14.5) + ~1 key in sweets

Total is 15.5 keys

Sale 6:

https://backpack.tf/profiles/76561198110930731#!/compare/1534982400/1535068800

https://backpack.tf/profiles/76561198252999692#!/compare/1534550400/1535068800

Sold with ~5 keys in sweets for Cauldron Mirror(16)

Total is 11 keys

Total sales @:

8, 11, 11, 11.5, 12, 15.5 keys

Calling 8 & 15.5 outliers,

taking 11 - 12 keys.