History 1: https://backpack.tf/item/8384473591

Untraceable:

https://backpack.tf/profiles/76561199004803157#!/compare/1610064000/1610236800

https://backpack.tf/profiles/76561199074169538#!/compare/1609372800/1610150400

10 ref matches, buyer is a known quickbuyer:

https://backpack.tf/profiles/76561199074169538#!/compare/1610150400/1610582400

https://backpack.tf/profiles/76561198841279602#!/compare/1610064000/1610150400

LOOT.Farm + tradebacks

History 2: https://backpack.tf/item/7601689512

3 keys 30.88 ref, ~3.6 keys (sold to a bot)

https://backpack.tf/profiles/76561198206464671#!/compare/1612137600/1612224000

https://backpack.tf/profiles/76561199098694108#!/compare/1612224000/1612310400

History 3: https://backpack.tf/item/6022602684

STN to LOOT.Farm

History 4: https://backpack.tf/item/5949617751

4 keys:

https://backpack.tf/profiles/76561198311498888#!/compare/1610150400/1610236800

https://backpack.tf/profiles/76561198409998592#!/compare/1610236800/1610582400

Untraceable/sold to a bot:

https://backpack.tf/profiles/76561198409998592#!/compare/1610236800/1610582400

https://backpack.tf/profiles/76561199004803157#!/compare/1610064000/1610236800

5 keys:

https://backpack.tf/profiles/76561199004803157#!/compare/1615680000/1615766400

https://backpack.tf/profiles/76561198853642988#!/compare/1615766400/1615939200

History 5: https://backpack.tf/item/5900101583

Dumped to Quicksell.Store:

https://backpack.tf/profiles/76561198407927114#!/compare/1608336000/1608422400

https://backpack.tf/profiles/76561199085116273#!/compare/1608336000/1608422400

Bulk:

https://backpack.tf/profiles/76561199085116273#!/compare/1609632000/1609718400

https://backpack.tf/profiles/76561198411013435#!/compare/1608854400/1609977600

Untraceable/bulk:

https://backpack.tf/profiles/76561198411013435#!/compare/1609977600/1610409600

https://backpack.tf/profiles/76561198956837007#!/compare/1614384000/1614470400

Untraceable:

https://backpack.tf/profiles/76561198956837007#!/compare/1614384000/1614470400

https://backpack.tf/profiles/76561199115905970#!/compare/1614384000/1614470400

then sold on Marketplace.tf

History 6: https://backpack.tf/item/5537900911

All trades before being unusualified, the Scrap.tf bot involved only tardes non-unusuals

History 7: https://backpack.tf/item/4888759744

Bulk:

https://backpack.tf/profiles/76561197963621595#!/compare/1610755200/1614038400

https://backpack.tf/profiles/76561198267189538#!/compare/1613606400/1613779200

4 keys 32.33 ref, ~4.65 keys:

https://backpack.tf/profiles/76561198267189538#!/compare/1613779200/1614038400

https://backpack.tf/profiles/76561198140953055#!/compare/1613952000/1614038400

Then deposited to LOOT.Farm

History 8: https://backpack.tf/item/3901783737

32.77 ref matches:

https://backpack.tf/profiles/76561198050651176#!/compare/1614038400/1614124800

https://backpack.tf/profiles/76561198890990852#!/compare/1614038400/1614124800

Then went to LOOT.Farm

Marketplace.tf sale: https://marketplace.tf/items/tf2/30615;5;u3009

March 15: $9.99/2.19=4.56 ~4.55 keys

Gladiator.tf stats: https://imgur.com/id9HXIs

Sale at 5 keys (most likely the one above), buy at ~4.35 keys

Unsolds:

Marketplace.tf seller at $11.25 (~5.15 keys)

Backpack.tf: 5 keys over a month (https://gladiator.tf/listings/6019f91a39667d7cfd048aca https://backpack.tf/item/7601689512), 5 keys for 26 days (https://backpack.tf/item/5654559265)

Buyers: Up to 4.53 keys https://gladiator.tf/listings/6054f5e062f498c5a130ef4b

Sales at 3.6, 4.35, 4.55, 4.65, 5

Buyers up to 4.53 make 3 and 4.35 look low. The fact the two sellers at 5 have been there for a while, gonna exclude 5 too. It'll also balance the range since we're excluding two low sales.

Going 4.55-4.65 here