Sale 1:

https://backpack.tf/profiles/76561198018528305#!/compare/1531440000/1531526400

Untrace.

Sale 2:

https://backpack.tf/profiles/76561197961055319#!/compare/1530835200/1531612800

Untrace.

Sale 3:

https://backpack.tf/profiles/76561198182281603#!/compare/1528329600/1528416000

https://backpack.tf/profiles/76561198826120020#!/compare/1528329600/1528416000

bulk.

Sale 4:

https://backpack.tf/profiles/76561198826120020#!/compare/1528416000/1528502400

https://backpack.tf/profiles/76561198105378966#!/compare/1528329600/1528502400

Sold for Infernal Bloot(15) + Stormy Reggae + ~3 keys in sweets

Reggae Mini:

https://marketplace.tf/items/390;5;u29

Sold for 34.99 & 35.55 USD

Totals are 18.04 & 18.32 keys

https://backpack.tf/profiles/76561198349886701#!/compare/1530835200/1530921600

Sold for 12 keys + 20 ref

https://backpack.tf/profiles/76561198302431811#!/compare/1528243200/1529452800

https://backpack.tf/profiles/76561198029431277#!/compare/1529280000/1529366400

Sold for 12 keys + 18 ref

Take average of 13-18 keys, average of 16.5, rounding down to 16 due to seller at 16.

Total is 15 + 16 + 3 = 34 keys

Sale 5:

https://backpack.tf/profiles/76561198105378966#!/compare/1528502400/1528588800

https://backpack.tf/profiles/76561198083134207#!/compare/1528416000/1528502400

Untrace.

Sale 6:

https://backpack.tf/profiles/76561198083134207#!/compare/1530230400/1530316800

https://backpack.tf/profiles/76561198157451436#!/compare/1530230400/1530316800

Sold for 30 keys.

Taking range of 30 - 34 keys.