History 1: https://backpack.tf/item/9375870584

20 keys????

https://backpack.tf/profiles/76561198798111160#!/compare/1604361600/1604448000

https://backpack.tf/profiles/76561198413125750#!/compare/1604448000/1606089600

History 2: https://backpack.tf/item/9323886980

Marketplace.tf sale

History 3: https://backpack.tf/item/9317192755

Bulk for the Misty Skull One-Man Army

https://backpack.tf/profiles/76561198310811821#!/compare/1610236800/1611619200

https://backpack.tf/profiles/76561198292137994#!/compare/1610236800/1610323200

History 4: https://backpack.tf/item/9075596153

Deposited to mannco.Store

History 5: https://backpack.tf/item/6942239017

Untraceable (looks like they were sold to a backpack buyer)

https://backpack.tf/profiles/76561198175905570#!/compare/1609891200/1609977600

https://backpack.tf/profiles/76561198139171368#!/compare/1609891200/1609977600

Bulk:

https://backpack.tf/profiles/76561198139171368#!/compare/1609891200/1609977600

https://backpack.tf/profiles/76561199102396250#!/compare/1609891200/1609977600

Marketplace.tf sale: https://marketplace.tf/items/tf2/1168;5;u3044

November 10: $16/1.8=8.89 ~9 keys

Unsolds: 2 at 9 keys, one has been there for 16 days. Mannco.store seller at $20 (10.75 keys)

Sales at 9 and 20.

Well, already given the two sellers at 9 keys and the seller on mannco.Store at 10.75, it's obvious that 20 is a high outlier.

Taking 9 flat, 2 sales at 8.88 keys on October 16 which are now outdated support this price