Sale 1:

https://backpack.tf/profiles/76561198272692680#!/compare/1561248000/1561593600

https://backpack.tf/profiles/76561198416157114#!/compare/1561420800/1561593600

Sold for P Fetti Rifleman

use there

Sale 2:

https://backpack.tf/profiles/76561198086255765#!/compare/1566604800/1566691200

https://backpack.tf/profiles/76561198412221466#!/compare/1548288000/1567296000

Untrace

Sale 3:

https://backpack.tf/profiles/76561198127262498#!/compare/1566259200/1566604800

https://backpack.tf/profiles/76561198103899658#!/compare/1566518400/1566604800

Sold for keys

Sale 4:

https://backpack.tf/profiles/76561198103899658#!/compare/1566604800/1566777600

https://backpack.tf/profiles/76561198110894760#!/compare/1566604800/1566777600

Sold for C9 Guad(18)

Sale 5:

https://backpack.tf/profiles/76561198110894760#!/compare/1566604800/1566777600

https://backpack.tf/profiles/76561198147407556#!/compare/1566691200/1566777600

Sold for DBD Glove(20)

Sale 6:

https://backpack.tf/profiles/76561198013207524#!/compare/1564099200/1564272000

https://backpack.tf/profiles/76561198193702867#!/compare/1564012800/1564790400

Untrace

Sale 7:

https://backpack.tf/profiles/76561198193702867#!/compare/1566259200/1566345600

https://backpack.tf/profiles/76561198945673312#!/compare/1566259200/1566345600

Untrace

sale 8:

https://backpack.tf/profiles/76561198945673312#!/compare/1566259200/1566345600

https://backpack.tf/profiles/76561198138593806#!/compare/1566345600/1566432000

Sold for Fod Spirits(3.25) + ~26.5 keys in sweets

Total is ~30 keys

Sale 9:

https://backpack.tf/profiles/76561198072393134#!/compare/1563235200/1564704000

https://backpack.tf/profiles/76561198134639553#!/compare/1518048000/1564790400

Untrace

Sale 10:

https://backpack.tf/profiles/76561198134639553#!/compare/1566777600/1566950400

https://backpack.tf/profiles/76561198064646061#!/compare/1566864000/1566950400

Sold with ~4 keys in sweets for Steaming Yellow Belt

Belt Mini:

https://backpack.tf/suggestion/5d7f2c136780725f2830e995

Suggestion for 17 keys

Total is 13 keys

Sale 11:

https://backpack.tf/profiles/76561198193414305#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198308147530#!/compare/1566432000/1567209600

https://backpack.tf/profiles/76561198148532116#!/compare/1567123200/1567209600

Untrace / bulk

Sale 12:

https://backpack.tf/profiles/76561198164759620#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198044971939#!/compare/1566518400/1566777600

https://backpack.tf/profiles/76561198044971939#!/compare/1566950400/1567036800

https://backpack.tf/profiles/76561198973894950#!/compare/1566950400/1567036800

https://backpack.tf/profiles/76561198341826777#!/compare/1566950400/1567036800

https://backpack.tf/profiles/76561197965419480#!/compare/1567814400/1568419200

Untrace / gambling(?), then transfers

Sale 13:

https://backpack.tf/profiles/76561198285816006#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198337734785#!/compare/1566432000/1566518400

Sold for ~10 keys

Sale 14:

https://backpack.tf/profiles/76561198337734785#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198012537041#!/compare/1567036800/1567123200

https://backpack.tf/profiles/76561198973894950#!/compare/1567036800/1567123200

Untrace

Sale 15:

https://backpack.tf/profiles/76561198973894950#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198308147530#!/compare/1566432000/1567209600

https://backpack.tf/profiles/76561198148532116#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198074424621#!/compare/1567209600/1567296000

Gambling

Sale 16:

https://backpack.tf/profiles/76561198074424621#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561198822711927#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198205939253#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198044971939#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198089253101#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198044971939#!/compare/1567555200/1567641600

https://backpack.tf/profiles/76561198320615503#!/compare/1567641600/1567728000

Gambling

Sale 17:

https://backpack.tf/profiles/76561198320615503#!/compare/1567728000/1567814400

https://backpack.tf/profiles/76561197965419480#!/compare/1567814400/1568419200

https://backpack.tf/profiles/76561198063803737#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198432461884#!/compare/1567728000/1567814400

https://backpack.tf/profiles/76561198114811502#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198142892266#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198142892266#!/compare/1568073600/1568160000

Untrace

Sale 18:

https://backpack.tf/profiles/76561198142892266#!/compare/1568073600/1568160000

https://backpack.tf/profiles/76561198118148699#!/compare/1567987200/1568160000

Untrace

Sale 19:

https://backpack.tf/profiles/76561198118148699#!/compare/1568160000/1568246400

https://backpack.tf/profiles/76561198271915998#!/compare/1568246400/1568332800

Untrace

Sale 20:

https://backpack.tf/profiles/76561198271915998#!/compare/1568246400/1568332800

https://backpack.tf/profiles/76561198821515560#!/compare/1568246400/1568332800

Sold for Smoking Bomber

use there

Sale 21, 22:

https://marketplace.tf/items/tf2/817;5;u57

$30 / $1.82 = 16.48 keys

$25 / $1.83 = 13.66 keys

Total sales @:

10, 13, 13.66, 16.48, 18, 20, 30 keys

Buyers up to 12 keys,

sellers down to 20 keys,

Taking 13 - 20 keys