History 1: https://backpack.tf/item/7924788984

bot transfer

Added 2 keys, 37.66 ref (~0.74 keys) and Summer Shades (~0.39 keys) for a '72 Taunt: Kazotsky Kick:

https://backpack.tf/profiles/76561199084784906#!/compare/1609632000/1609718400

https://backpack.tf/profiles/76561198169513645#!/compare/1608336000/1609718400

the Kaztosky is in-date at 17-21 keys, mean value of 19

2+0.39+0.74=3.13 keys

19-3.13=15.87 ~16 keys

No boyout, however there was a seller at ~10.5 keys when this happened https://gladiator.tf/listings/5fefceee03fa97e141b87259

Untraceable:

https://backpack.tf/profiles/76561198169513645#!/compare/1614729600/1615420800

https://backpack.tf/profiles/76561198080179568#!/compare/1615334400/1615420800

Then listed on Marketplace.tf at ~12 keys https://marketplace.tf/items/tf2/31024;5;u16

History 2: https://backpack.tf/item/7729190129

Sold on Marketplace.tf, most likely January 7, didn't have a buyout

History 3: https://backpack.tf/item/7655105742

Sold to a quickbyer:

https://backpack.tf/profiles/76561198241971584#!/compare/1606780800/1609113600

https://backpack.tf/profiles/76561198841279602#!/compare/1609027200/1609113600

Untraceable:

https://backpack.tf/profiles/76561198841279602#!/compare/1614902400/1614988800

https://backpack.tf/profiles/76561198080179568#!/compare/1614902400/1614988800

Listed on Marketplace.tf at ~12 keys

Hidden History (History 4): https://backpack.tf/item/7655105742

Sold for 10 keys and 9 ref, ~10 keys:

https://backpack.tf/profiles/76561198841279602#!/compare/1609113600/1609200000

https://backpack.tf/profiles/76561198073149874#!/compare/1606867200/1609804800

History 5: https://backpack.tf/item/7450869878

10 keys 25.33 ref:

https://backpack.tf/profiles/76561198337734785#!/compare/1609459200/1609545600

https://backpack.tf/profiles/76561198151251491#!/compare/1609545600/1611360000

keys were around 53.94 keys https://imgur.com/B9K6Dc8

This'll make the sale 10.47 keys, rounding to 10

History 6: https://backpack.tf/item/7409922658

Untraceable/Bulk:

https://backpack.tf/profiles/76561198328082426#!/compare/1611532800/1612224000

https://backpack.tf/profiles/76561199096338283#!/compare/1611273600/1611619200

Bulk:

https://backpack.tf/profiles/76561199096338283#!/compare/1611273600/1611619200

https://backpack.tf/profiles/76561198047025126#!/compare/1611532800/1611619200

Bulk to Quicksell.Store:

https://backpack.tf/profiles/76561198047025126#!/compare/1611619200/1611705600

https://backpack.tf/profiles/76561198850274253#!/compare/1611619200/1611705600

Bot transfers

Untraceable:

https://backpack.tf/profiles/76561198850178158#!/compare/1613692800/1613779200

https://backpack.tf/profiles/76561198179021962#!/compare/1613520000/1613865600

Bulk:

https://backpack.tf/profiles/76561198179021962#!/compare/1614211200/1614297600

https://backpack.tf/profiles/76561198037674114#!/compare/1613433600/1614384000

Marketplace/tf sales: https://marketplace.tf/items/tf2/31024;5;u16

January 7: $21.99/2.12=10.37 ~10 keys

Janaury 11: $21.99/2.12=10.37 ~10 keys

Sales at 10, 10, 10, 16

Given the fact there are two sellers at 12 on Marketplace.tf and there was a lower seller when 16 happened, 16 looks like an outlier here.

Going with 10 flat