Sale 1:

https://backpack.tf/profiles/76561198077077233#!/compare/1564358400/1565136000

https://backpack.tf/profiles/76561198048851745#!/compare/1564963200/1565136000

Sold for ~12 keys (QS)

Sale 2:

https://backpack.tf/profiles/76561198048851745#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198362484898#!/compare/1566432000/1566518400

Sold for 15 keys

Sale 3:

https://backpack.tf/profiles/76561198045775820#!/compare/1567987200/1568073600

https://backpack.tf/profiles/76561198970049092#!/compare/1567900800/1568073600

SCM

sale 4:

https://backpack.tf/profiles/76561198857352710#!/compare/1568419200/1568592000

https://backpack.tf/profiles/76561198408606810#!/compare/1568419200/1568505600

Bulk

Sale 5:

https://backpack.tf/profiles/76561198130718345#!/compare/1569024000/1569542400

https://backpack.tf/profiles/76561198006544512#!/compare/1569456000/1569542400

Sold for ~8 keys

Sale 6:

https://backpack.tf/profiles/76561198006544512#!/compare/1569628800/1569715200

https://backpack.tf/profiles/76561198261849239#!/compare/1569456000/1569715200

Sold for 14 keys

Sale 7:

https://backpack.tf/profiles/76561198070744678#!/compare/1563926400/1566777600

https://backpack.tf/profiles/76561198353111086#!/compare/1566432000/1566777600

Sold for 12 keys (hat doesn't show up in sellers side)

Sale 8:

https://backpack.tf/profiles/76561198353111086#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198166705315#!/compare/1566864000/1566950400

Sold for C9 Pride

use there

Sale 9:

https://backpack.tf/profiles/76561198166705315#!/compare/1566864000/1566950400

https://backpack.tf/profiles/76561198110423788#!/compare/1566777600/1567382400

SCM

Sale 10:

https://backpack.tf/profiles/76561198807806220#!/compare/1565827200/1566172800

https://backpack.tf/profiles/76561198402003014#!/compare/1566691200/1566777600

SCM

sale 11:

https://backpack.tf/profiles/76561198402003014#!/compare/1567296000/1567382400

https://backpack.tf/profiles/76561198006097890#!/compare/1567209600/1567296000

Sold for TW Tit Tyro

use there

Sale 12:

https://backpack.tf/profiles/76561198799831856#!/compare/1567728000/1567814400

https://backpack.tf/profiles/76561198079160799#!/compare/1567728000/1567814400

Sold for 9 keys

Sale 13:

https://backpack.tf/profiles/76561198079160799#!/compare/1567814400/1567900800

https://backpack.tf/profiles/76561198128829201#!/compare/1567728000/1568419200

Keys, can't trace exact amount

Sale 14:

https://backpack.tf/profiles/76561198304656546#!/compare/1564099200/1569110400

https://backpack.tf/profiles/76561198160409549#!/compare/1541030400/1566432000

SCM

Sale 15:

https://backpack.tf/profiles/76561198160409549#!/compare/1566518400/1567728000

https://backpack.tf/profiles/76561198799307691#!/compare/1568505600/1568592000

SCM

Sale 16:

https://backpack.tf/profiles/76561198245296770#!/compare/1569196800/1569369600

https://backpack.tf/profiles/76561198064950810#!/compare/1569369600/1569456000

Sold for KaW Capotain + 5 keys

Capotain Mini:

https://backpack.tf/suggestion/5d9fec0ad3817219f8767152

Suggestion for 8.5 keys

Total is 13.5 keys

Sale 17:

https://backpack.tf/profiles/76561198858303999#!/compare/1565827200/1567209600

https://backpack.tf/profiles/76561198071566056#!/compare/1565913600/1566259200

SCM

Sale 18:

https://backpack.tf/profiles/76561198071566056#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198084849541#!/compare/1567641600/1567987200

Untrace

Sale 19:

https://backpack.tf/profiles/76561198294843285#!/compare/1569110400/1569196800

https://backpack.tf/profiles/76561198188517001#!/compare/1569024000/1569110400

Sold for Smoking Panama ~1.5 keys in sweets

Panama Mini:

https://backpack.tf/suggestion/5d9fee916780724d320929e8

Suggestion for 8.25 keys

Total is 9.75 keys

Sale 20:

https://marketplace.tf/items/tf2/627;5;u59

$23.99 / $1.81 = 13.25 keys

Total sales @:

8, 9, 9.75, 12, 12, 13.25, 13.5, 14, 15 keys

buyers up to ~8.5 keys,

seller at 14 keys,

calling 15 high,

9 and under low,

taking 10 - 14 keys